diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index ec57c0864..627007c1e 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -10,6 +10,9 @@ Version 2.3 (unreleased)
 Agenda:
  - New item type 'hidden'. New visibilty filter in agenda [#3790].
 
+Elections:
+ - Support to change decimal places for elections with a plugin [#3803]
+
 Motions:
  - New feature to scroll the projector to a specific line [#3748].
  - New possibility to sort submitters [#3647].
@@ -21,6 +24,7 @@ Motions:
  - New teporal field "modified final version" where the final version can
    be edited [#3781].
  - New config to show amendments also in motions table [#3792]
+ - Support to change decimal places for polls with a plugin [#3803]
 
  Core:
  - Python 3.4 is not supported anymore [#3777].
diff --git a/openslides/assignments/migrations/0005_auto_20180822_1042.py b/openslides/assignments/migrations/0005_auto_20180822_1042.py
new file mode 100644
index 000000000..c53bf1b82
--- /dev/null
+++ b/openslides/assignments/migrations/0005_auto_20180822_1042.py
@@ -0,0 +1,75 @@
+# Generated by Django 2.1 on 2018-08-22 08:42
+
+from decimal import Decimal
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('assignments', '0004_auto_20180703_1523'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='assignmentpoll',
+            name='votescast',
+            field=models.DecimalField(
+                blank=True,
+                decimal_places=6,
+                max_digits=15,
+                null=True,
+                validators=[django.core.validators.MinValueValidator(Decimal('-2'))]),
+        ),
+        migrations.AlterField(
+            model_name='assignmentpoll',
+            name='votesinvalid',
+            field=models.DecimalField(
+                blank=True,
+                decimal_places=6,
+                max_digits=15,
+                null=True,
+                validators=[django.core.validators.MinValueValidator(Decimal('-2'))]),
+        ),
+        migrations.AlterField(
+            model_name='assignmentpoll',
+            name='votesvalid',
+            field=models.DecimalField(
+                blank=True,
+                decimal_places=6,
+                max_digits=15,
+                null=True,
+                validators=[django.core.validators.MinValueValidator(Decimal('-2'))]),
+        ),
+        migrations.AlterField(
+            model_name='assignmentvote',
+            name='weight',
+            field=models.DecimalField(
+                decimal_places=6,
+                default=Decimal('1'),
+                max_digits=15,
+                null=True,
+                validators=[django.core.validators.MinValueValidator(Decimal('-2'))]),
+        ),
+        migrations.AlterField(
+            model_name='assignmentpoll',
+            name='votesabstain',
+            field=models.DecimalField(
+                blank=True,
+                decimal_places=6,
+                max_digits=15,
+                null=True,
+                validators=[django.core.validators.MinValueValidator(Decimal('-2'))]),
+        ),
+        migrations.AlterField(
+            model_name='assignmentpoll',
+            name='votesno',
+            field=models.DecimalField(
+                blank=True,
+                decimal_places=6,
+                max_digits=15,
+                null=True,
+                validators=[django.core.validators.MinValueValidator(Decimal('-2'))]),
+        ),
+    ]
diff --git a/openslides/assignments/models.py b/openslides/assignments/models.py
index d6bc5cf7c..54c491dfd 100644
--- a/openslides/assignments/models.py
+++ b/openslides/assignments/models.py
@@ -1,8 +1,10 @@
 from collections import OrderedDict
+from decimal import Decimal
 from typing import Any, Dict, List, Optional  # noqa
 
 from django.conf import settings
 from django.contrib.contenttypes.fields import GenericRelation
+from django.core.validators import MinValueValidator
 from django.db import models
 from django.utils.translation import ugettext as _
 from django.utils.translation import ugettext_noop
@@ -19,7 +21,7 @@ from openslides.poll.models import (
 )
 from openslides.utils.autoupdate import inform_changed_data
 from openslides.utils.exceptions import OpenSlidesError
-from openslides.utils.models import MinMaxIntegerField, RESTModelMixin
+from openslides.utils.models import RESTModelMixin
 
 from .access_permissions import AssignmentAccessPermissions
 
@@ -423,9 +425,11 @@ class AssignmentPoll(RESTModelMixin, CollectDefaultVotesMixin,  # type: ignore
         max_length=79,
         blank=True)
 
-    votesabstain = MinMaxIntegerField(null=True, blank=True, min_value=-2)
+    votesabstain = models.DecimalField(null=True, blank=True, validators=[
+        MinValueValidator(Decimal('-2'))], max_digits=15, decimal_places=6)
     """ General abstain votes, used for pollmethod 'votes' """
-    votesno = MinMaxIntegerField(null=True, blank=True, min_value=-2)
+    votesno = models.DecimalField(null=True, blank=True, validators=[
+        MinValueValidator(Decimal('-2'))], max_digits=15, decimal_places=6)
     """ General no votes, used for pollmethod 'votes' """
 
     class Meta:
diff --git a/openslides/assignments/serializers.py b/openslides/assignments/serializers.py
index 845ca4e1c..438fd46f8 100644
--- a/openslides/assignments/serializers.py
+++ b/openslides/assignments/serializers.py
@@ -3,6 +3,7 @@ from django.utils.translation import ugettext as _
 
 from openslides.poll.serializers import default_votes_validator
 from openslides.utils.rest_api import (
+    DecimalField,
     DictField,
     IntegerField,
     ListField,
@@ -98,7 +99,7 @@ class AssignmentAllPollSerializer(ModelSerializer):
     options = AssignmentOptionSerializer(many=True, read_only=True)
     votes = ListField(
         child=DictField(
-            child=IntegerField(min_value=-2)),
+            child=DecimalField(max_digits=15, decimal_places=6, min_value=-2)),
         write_only=True,
         required=False)
     has_votes = SerializerMethodField()
diff --git a/openslides/assignments/static/js/assignments/base.js b/openslides/assignments/static/js/assignments/base.js
index a4f64ac67..c971c99a2 100644
--- a/openslides/assignments/static/js/assignments/base.js
+++ b/openslides/assignments/static/js/assignments/base.js
@@ -14,6 +14,12 @@ angular.module('OpenSlidesApp.assignments', [])
         return DS.defineResource({
             name: 'assignments/polloption',
             useClass: jsDataModel,
+            // Change the stringified numbers to floats.
+            beforeInject: function (resource, instance) {
+                _.forEach(instance.votes, function (vote) {
+                    vote.weight = parseFloat(vote.weight);
+                });
+            },
             methods: {
                 getVotes: function () {
                     if (!this.poll.has_votes) {
@@ -154,6 +160,15 @@ angular.module('OpenSlidesApp.assignments', [])
         return DS.defineResource({
             name: name,
             useClass: jsDataModel,
+            // Change the stringified numbers to floats.
+            beforeInject: function (resource, instance) {
+                var attrs = ['votescast', 'votesinvalid', 'votesvalid', 'votesabstain', 'votesno'];
+                _.forEach(attrs, function (attr) {
+                    if (instance[attr] !== null) {
+                        instance[attr] = parseFloat(instance[attr]);
+                    }
+                });
+            },
             methods: {
                 getResourceName: function () {
                     return name;
@@ -307,6 +322,18 @@ angular.module('OpenSlidesApp.assignments', [])
     }
 ])
 
+.provider('AssignmentPollDecimalPlaces', [
+    function () {
+        this.$get = [function () {
+            return {
+                getPlaces: function (poll, find) {
+                    return 0;
+                },
+            };
+        }];
+    }
+])
+
 .factory('AssignmentRelatedUser', [
     'DS',
     function (DS) {
diff --git a/openslides/assignments/static/js/assignments/pdf.js b/openslides/assignments/static/js/assignments/pdf.js
index c0f6f0ac7..bbd4399dc 100644
--- a/openslides/assignments/static/js/assignments/pdf.js
+++ b/openslides/assignments/static/js/assignments/pdf.js
@@ -9,7 +9,8 @@ angular.module('OpenSlidesApp.assignments.pdf', ['OpenSlidesApp.core.pdf'])
     'HTMLValidizer',
     'gettextCatalog',
     'PDFLayout',
-    function($filter, HTMLValidizer, gettextCatalog, PDFLayout) {
+    'AssignmentPollDecimalPlaces',
+    function($filter, HTMLValidizer, gettextCatalog, PDFLayout, AssignmentPollDecimalPlaces) {
 
         var createInstance = function(assignment) {
 
@@ -113,13 +114,13 @@ angular.module('OpenSlidesApp.assignments.pdf', ['OpenSlidesApp.core.pdf'])
             };
 
             //creates the voting string for the result table and differentiates between special values
-            var parseVoteValue = function(voteObject, printLabel) {
+            var parseVoteValue = function(voteObject, printLabel, precision) {
                 var voteVal = '';
                 if (voteObject) {
                     if (printLabel) {
                         voteVal += voteObject.label + ': ';
                     }
-                    voteVal += voteObject.value;
+                    voteVal += $filter('number')(voteObject.value, precision);
 
                     if (voteObject.percentStr) {
                         voteVal += ' ' + voteObject.percentStr;
@@ -135,6 +136,7 @@ angular.module('OpenSlidesApp.assignments.pdf', ['OpenSlidesApp.core.pdf'])
                 _.forEach(assignment.polls, function(poll, pollIndex) {
                     if (poll.published) {
                         var pollTableBody = [];
+                        var precision = AssignmentPollDecimalPlaces.getPlaces(poll);
 
                         resultBody.push({
                             text: gettextCatalog.getString('Ballot') + ' ' + (pollIndex+1),
@@ -163,14 +165,14 @@ angular.module('OpenSlidesApp.assignments.pdf', ['OpenSlidesApp.core.pdf'])
                             if (poll.pollmethod == 'votes') {
                                 tableLine.push(
                                     {
-                                        text: parseVoteValue(votes[0], false),
+                                        text: parseVoteValue(votes[0], false, precision),
                                         style: PDFLayout.flipTableRowStyle(pollTableBody.length)
                                     }
                                 );
                             } else {
                                 var resultBlock = [];
                                 _.forEach(votes, function(vote) {
-                                    resultBlock.push(parseVoteValue(vote, true));
+                                    resultBlock.push(parseVoteValue(vote, true, precision));
                                 });
                                 tableLine.push({
                                         text: resultBlock,
@@ -189,7 +191,7 @@ angular.module('OpenSlidesApp.assignments.pdf', ['OpenSlidesApp.core.pdf'])
                                         style: 'tableConclude'
                                     },
                                     {
-                                        text: parseVoteValue(poll.getVote(fieldName), false),
+                                        text: parseVoteValue(poll.getVote(fieldName), false, precision),
                                         style: 'tableConclude'
                                     },
                                 ]);
diff --git a/openslides/assignments/static/js/assignments/projector.js b/openslides/assignments/static/js/assignments/projector.js
index 0e25e8155..ac27a8c21 100644
--- a/openslides/assignments/static/js/assignments/projector.js
+++ b/openslides/assignments/static/js/assignments/projector.js
@@ -16,15 +16,27 @@ angular.module('OpenSlidesApp.assignments.projector', ['OpenSlidesApp.assignment
 .controller('SlideAssignmentCtrl', [
     '$scope',
     'Assignment',
+    'AssignmentPoll',
     'AssignmentPhases',
+    'AssignmentPollDecimalPlaces',
     'User',
-    function($scope, Assignment, AssignmentPhases, User) {
+    function($scope, Assignment, AssignmentPoll, AssignmentPhases, AssignmentPollDecimalPlaces, User) {
         // Attention! Each object that is used here has to be dealt on server side.
         // Add it to the coresponding get_requirements method of the ProjectorElement
         // class.
         var id = $scope.element.id;
         $scope.showResult = $scope.element.poll;
 
+        if ($scope.showResult) {
+            var poll = AssignmentPoll.get($scope.showResult);
+            $scope.votesPrecision = 0;
+            if (poll) {
+                AssignmentPollDecimalPlaces.getPlaces(poll, true).then(function (decimalPlaces) {
+                    $scope.votesPrecision = decimalPlaces;
+                });
+            }
+        }
+
         Assignment.bindOne(id, $scope, 'assignment');
         $scope.phases = AssignmentPhases;
         User.bindAll({}, $scope, 'users');
diff --git a/openslides/assignments/static/js/assignments/site.js b/openslides/assignments/static/js/assignments/site.js
index 7ab0a8511..155a4725d 100644
--- a/openslides/assignments/static/js/assignments/site.js
+++ b/openslides/assignments/static/js/assignments/site.js
@@ -218,11 +218,15 @@ angular.module('OpenSlidesApp.assignments.site', [
     'Config',
     'AssignmentPollDetailCtrlCache',
     'AssignmentPoll',
-    function ($scope, MajorityMethodChoices, Config, AssignmentPollDetailCtrlCache, AssignmentPoll) {
+    'AssignmentPollDecimalPlaces',
+    function ($scope, MajorityMethodChoices, Config, AssignmentPollDetailCtrlCache,
+        AssignmentPoll, AssignmentPollDecimalPlaces) {
         // Define choices.
         $scope.methodChoices = MajorityMethodChoices;
         // TODO: Get $scope.baseChoices from config_variables.py without copying them.
 
+        $scope.votesPrecision = AssignmentPollDecimalPlaces.getPlaces($scope.poll);
+
         // Setup empty cache with default values.
         if (typeof AssignmentPollDetailCtrlCache[$scope.poll.id] === 'undefined') {
             AssignmentPollDetailCtrlCache[$scope.poll.id] = {
@@ -689,9 +693,11 @@ angular.module('OpenSlidesApp.assignments.site', [
     'gettextCatalog',
     'AssignmentPoll',
     'assignmentpollId',
+    'AssignmentPollDecimalPlaces',
     'ballot',
     'ErrorMessage',
-    function($scope, $filter, gettextCatalog, AssignmentPoll, assignmentpollId, ballot, ErrorMessage) {
+    function($scope, $filter, gettextCatalog, AssignmentPoll, assignmentpollId,
+        AssignmentPollDecimalPlaces, ballot, ErrorMessage) {
         // set initial values for form model by create deep copy of assignmentpoll object
         // so detail view is not updated while editing poll
         var assignmentpoll = angular.copy(AssignmentPoll.get(assignmentpollId));
@@ -700,6 +706,9 @@ angular.module('OpenSlidesApp.assignments.site', [
         $scope.formFields = [];
         $scope.alert = {};
 
+        // For number inputs
+        var step = Math.pow(10, -AssignmentPollDecimalPlaces.getPlaces(assignmentpoll));
+
         // add dynamic form fields
         var options = $filter('orderBy')(assignmentpoll.options, 'weight');
         _.forEach(options, function(option) {
@@ -720,6 +729,7 @@ angular.module('OpenSlidesApp.assignments.site', [
                             label: gettextCatalog.getString('Yes'),
                             type: 'number',
                             min: -2,
+                            step: step,
                             required: true
                         },
                         defaultValue: defaultValue.yes
@@ -733,6 +743,7 @@ angular.module('OpenSlidesApp.assignments.site', [
                             label: gettextCatalog.getString('No'),
                             type: 'number',
                             min: -2,
+                            step: step,
                             required: true
                         },
                         defaultValue: defaultValue.no
@@ -747,6 +758,7 @@ angular.module('OpenSlidesApp.assignments.site', [
                             label: gettextCatalog.getString('Abstain'),
                             type: 'number',
                             min: -2,
+                            step: step,
                             required: true
                         },
                         defaultValue: defaultValue.abstain
@@ -771,6 +783,7 @@ angular.module('OpenSlidesApp.assignments.site', [
                         label: option.candidate.get_full_name(),
                         type: 'number',
                         min: -2,
+                        step: step,
                         required: true,
                     },
                     defaultValue: defaultValue
@@ -785,6 +798,7 @@ angular.module('OpenSlidesApp.assignments.site', [
                     templateOptions: {
                         label: gettextCatalog.getString('Abstain'),
                         type: 'number',
+                        step: step,
                         min: -2,
                     }
                 },
@@ -794,6 +808,7 @@ angular.module('OpenSlidesApp.assignments.site', [
                     templateOptions: {
                         label: gettextCatalog.getString('No'),
                         type: 'number',
+                        step: step,
                         min: -2,
                     }
                 }
@@ -810,6 +825,7 @@ angular.module('OpenSlidesApp.assignments.site', [
                 templateOptions: {
                     label: gettextCatalog.getString('Valid ballots'),
                     type: 'number',
+                    step: step,
                     min: -2,
                 }
             },
@@ -819,6 +835,7 @@ angular.module('OpenSlidesApp.assignments.site', [
                 templateOptions: {
                     label: gettextCatalog.getString('Invalid ballots'),
                     type: 'number',
+                    step: step,
                     min: -2,
                 }
             },
@@ -828,6 +845,7 @@ angular.module('OpenSlidesApp.assignments.site', [
                 templateOptions: {
                     label: gettextCatalog.getString('Casted ballots'),
                     type: 'number',
+                    step: step,
                     min: -2,
                 }
             }
diff --git a/openslides/assignments/static/templates/assignments/assignment-detail.html b/openslides/assignments/static/templates/assignments/assignment-detail.html
index 098240882..d585d345e 100644
--- a/openslides/assignments/static/templates/assignments/assignment-detail.html
+++ b/openslides/assignments/static/templates/assignments/assignment-detail.html
@@ -234,7 +234,7 @@
                 <div ng-init="votes = option.getVotes()">
                   <div ng-repeat="vote in votes">
                     <span ng-if="poll.pollmethod == 'yna' || poll.pollmethod == 'yn'">{{ vote.label }}:</span>
-                    {{ vote.value }} {{ vote.percentStr }}
+                    {{ vote.value | number:votesPrecision }} {{ vote.percentStr }}
                     <div ng-if="vote.percentNumber >= 0">
                       <uib-progressbar ng-if="$index == 0" value="vote.percentNumber" type="success"></uib-progressbar>
                       <uib-progressbar ng-if="$index == 1" value="vote.percentNumber" type="danger"></uib-progressbar>
@@ -244,10 +244,10 @@
                 </div>
               <td ng-hide="method === 'disabled'">
                 <span ng-if="option.majorityReached >= 0" class="text-success" translate>
-                    Quorum ({{ option.getVoteYes() - option.majorityReached }}) reached.
+                    Quorum ({{ (option.getVoteYes() - option.majorityReached) | number:votesPrecision }}) reached.
                 </span>
                 <span ng-if="option.majorityReached < 0" class="text-danger" translate>
-                    Quorum ({{ option.getVoteYes() - option.majorityReached }}) not reached.
+                    Quorum ({{ (option.getVoteYes() - option.majorityReached) | number:votesPrecision }}) not reached.
                 </span>
 
             <!-- total votes (valid/invalid/casts) -->
@@ -255,31 +255,31 @@
               <td>
                 <translate>Abstain</translate>
               <td>
-                {{ poll.getVote('votesabstain').value }}
+                {{ poll.getVote('votesabstain').value | number:votesPrecision }}
                 {{ poll.getVote('votesabstain').percentStr }}
             <tr ng-if="poll.pollmethod === 'votes'">
               <td>
                 <translate>No</translate>
               <td>
-                {{ poll.getVote('votesno').value }}
+                {{ poll.getVote('votesno').value | number:votesPrecision }}
                 {{ poll.getVote('votesno').percentStr }}
             <tr>
               <td>
                 <translate>Valid ballots</translate>
               <td>
-                {{ poll.getVote('votesvalid').value }}
+                {{ poll.getVote('votesvalid').value | number:votesPrecision }}
                 {{ poll.getVote('votesvalid').percentStr }}
             <tr>
               <td>
                 <translate>Invalid ballots</translate>
               <td>
-                {{ poll.getVote('votesinvalid').value }}
+                {{ poll.getVote('votesinvalid').value | number:votesPrecision }}
                 {{ poll.getVote('votesinvalid').percentStr }}
             <tr class="total bg-info">
               <td>
                 <translate>Casted ballots</translate>
               <td>
-                {{ poll.getVote('votescast').value }}
+                {{ poll.getVote('votescast').value | number:votesPrecision }}
                 {{ poll.getVote('votescast').percentStr }}
           </table>
 
diff --git a/openslides/assignments/static/templates/assignments/slide_assignment.html b/openslides/assignments/static/templates/assignments/slide_assignment.html
index 708bc7339..e3954e0e0 100644
--- a/openslides/assignments/static/templates/assignments/slide_assignment.html
+++ b/openslides/assignments/static/templates/assignments/slide_assignment.html
@@ -49,16 +49,16 @@
           <div ng-init="votes = option.getVotes()">
             <div ng-show="poll.pollmethod == 'yna' || poll.pollmethod == 'yn'">
               <span ng-show="poll.pollmethod == 'yna'">
-                {{ votes[0].label | translate }}: {{ votes[0].value }} {{ votes[0].percentStr }}<br>
-                {{ votes[1].label | translate }}: {{ votes[1].value }} {{ votes[1].percentStr }}<br>
-                {{ votes[2].label | translate }}: {{ votes[2].value }} {{ votes[2].percentStr }}</span>
+                {{ votes[0].label | translate }}: {{ votes[0].value | number:votesPrecision }} {{ votes[0].percentStr }}<br>
+                {{ votes[1].label | translate }}: {{ votes[1].value | number:votesPrecision }} {{ votes[1].percentStr }}<br>
+                {{ votes[2].label | translate }}: {{ votes[2].value | number:votesPrecision }} {{ votes[2].percentStr }}</span>
               <span ng-show="poll.pollmethod == 'yn'">
-                {{ votes[0].label | translate }}: {{ votes[0].value }} {{ votes[0].percentStr }}<br>
-                {{ votes[1].label | translate }}: {{ votes[1].value }} {{ votes[1].percentStr }}</span>
+                {{ votes[0].label | translate }}: {{ votes[0].value | number:votesPrecision }} {{ votes[0].percentStr }}<br>
+                {{ votes[1].label | translate }}: {{ votes[1].value | number:votesPrecision }} {{ votes[1].percentStr }}</span>
             </div>
             <div ng-show="poll.pollmethod == 'votes'">
               <div ng-repeat="vote in votes">
-                {{ vote.value }} {{ vote.percentStr }}
+                {{ vote.value | number:votesPrecision }} {{ vote.percentStr }}
               </div>
             </div>
           </div>
@@ -68,29 +68,29 @@
         <td>
           <translate>Abstain</translate>
         <td ng-init="vote = poll.getVote('votesabstain')">
-          {{ vote.value }} {{ vote.percentStr }}
+          {{ vote.value | number:votesPrecision }} {{ vote.percentStr }}
       <tr class="total" ng-if="poll.has_votes && poll.pollmethod === 'votes' && poll.getVote('votesno').value !== null">
         <td>
           <translate>No</translate>
         <td ng-init="vote = poll.getVote('votesno')">
-          {{ vote.value }} {{ vote.percentStr }}
+          {{ vote.value | number:votesPrecision }} {{ vote.percentStr }}
       <tr class="total" ng-if="poll.has_votes && poll.getVote('votesvalid').value !== null">
         <td>
           <translate>Valid ballots</translate>
         <td ng-init="vote = poll.getVote('votesvalid')">
-          {{ vote.value }} {{ vote.percentStr }}
+          {{ vote.value | number:votesPrecision }} {{ vote.percentStr }}
 
       <tr class="total" ng-if="poll.has_votes && poll.getVote('votesinvalid').value !== null">
         <td>
           <translate>Invalid ballots</translate>
         <td ng-init="vote = poll.getVote('votesinvalid')">
-          {{ vote.value }} {{ vote.percentStr }}
+          {{ vote.value | number:votesPrecision }} {{ vote.percentStr }}
 
       <tr class="total bg-info" ng-if="poll.has_votes && poll.getVote('votescast').value !== null">
         <td>
           <translate>Casted ballots</translate>
         <td ng-init="vote = poll.getVote('votescast')">
-          {{ vote.value }} {{ vote.percentStr }}
+          {{ vote.value | number:votesPrecision }} {{ vote.percentStr }}
       </table>
     </div>
 
diff --git a/openslides/motions/migrations/0010_auto_20180822_1042.py b/openslides/motions/migrations/0010_auto_20180822_1042.py
new file mode 100644
index 000000000..fa9fb0522
--- /dev/null
+++ b/openslides/motions/migrations/0010_auto_20180822_1042.py
@@ -0,0 +1,55 @@
+# Generated by Django 2.1 on 2018-08-22 08:42
+
+from decimal import Decimal
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('motions', '0009_motionversion_modified_final_version'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='motionpoll',
+            name='votescast',
+            field=models.DecimalField(
+                blank=True,
+                decimal_places=6,
+                max_digits=15,
+                null=True,
+                validators=[django.core.validators.MinValueValidator(Decimal('-2'))]),
+        ),
+        migrations.AlterField(
+            model_name='motionpoll',
+            name='votesinvalid',
+            field=models.DecimalField(
+                blank=True,
+                decimal_places=6,
+                max_digits=15,
+                null=True,
+                validators=[django.core.validators.MinValueValidator(Decimal('-2'))]),
+        ),
+        migrations.AlterField(
+            model_name='motionpoll',
+            name='votesvalid',
+            field=models.DecimalField(
+                blank=True,
+                decimal_places=6,
+                max_digits=15,
+                null=True,
+                validators=[django.core.validators.MinValueValidator(Decimal('-2'))]),
+        ),
+        migrations.AlterField(
+            model_name='motionvote',
+            name='weight',
+            field=models.DecimalField(
+                decimal_places=6,
+                default=Decimal('1'),
+                max_digits=15,
+                null=True,
+                validators=[django.core.validators.MinValueValidator(Decimal('-2'))]),
+        ),
+    ]
diff --git a/openslides/motions/serializers.py b/openslides/motions/serializers.py
index 6f2791bc2..a5979f0b5 100644
--- a/openslides/motions/serializers.py
+++ b/openslides/motions/serializers.py
@@ -1,4 +1,4 @@
-from typing import Dict  # noqa
+from typing import Dict, Optional  # noqa
 
 from django.db import transaction
 from django.utils.translation import ugettext as _
@@ -6,6 +6,7 @@ from django.utils.translation import ugettext as _
 from ..poll.serializers import default_votes_validator
 from ..utils.rest_api import (
     CharField,
+    DecimalField,
     DictField,
     Field,
     IntegerField,
@@ -212,7 +213,7 @@ class MotionPollSerializer(ModelSerializer):
     no = SerializerMethodField()
     abstain = SerializerMethodField()
     votes = DictField(
-        child=IntegerField(min_value=-2, allow_null=True),
+        child=DecimalField(max_digits=15, decimal_places=6, min_value=-2, allow_null=True),
         write_only=True)
     has_votes = SerializerMethodField()
 
@@ -238,21 +239,21 @@ class MotionPollSerializer(ModelSerializer):
 
     def get_yes(self, obj):
         try:
-            result = self.get_votes_dict(obj)['Yes']
+            result = str(self.get_votes_dict(obj)['Yes'])  # type: Optional[str]
         except KeyError:
             result = None
         return result
 
     def get_no(self, obj):
         try:
-            result = self.get_votes_dict(obj)['No']
+            result = str(self.get_votes_dict(obj)['No'])  # type: Optional[str]
         except KeyError:
             result = None
         return result
 
     def get_abstain(self, obj):
         try:
-            result = self.get_votes_dict(obj)['Abstain']
+            result = str(self.get_votes_dict(obj)['Abstain'])  # type: Optional[str]
         except KeyError:
             result = None
         return result
diff --git a/openslides/motions/static/js/motions/base.js b/openslides/motions/static/js/motions/base.js
index d2741bb4c..7296b3fc3 100644
--- a/openslides/motions/static/js/motions/base.js
+++ b/openslides/motions/static/js/motions/base.js
@@ -85,6 +85,14 @@ angular.module('OpenSlidesApp.motions', [
                     }
                 }
             },
+            beforeInject: function (resource, instance) {
+                var attrs = ['yes', 'no', 'abstain', 'votescast', 'votesinvalid', 'votesvalid'];
+                _.forEach(attrs, function (attr) {
+                    if (instance[attr] !== null) {
+                        instance[attr] = parseFloat(instance[attr]);
+                    }
+                });
+            },
             methods: {
                 // Returns percent base. Returns undefined if calculation is not possible in general.
                 getPercentBase: function (config, type) {
@@ -196,6 +204,18 @@ angular.module('OpenSlidesApp.motions', [
     }
 ])
 
+.provider('MotionPollDecimalPlaces', [
+    function () {
+        this.$get = [function () {
+            return {
+                getPlaces: function (poll, find) {
+                    return 0;
+                },
+            };
+        }];
+    }
+])
+
 .factory('MotionStateAndRecommendationParser', [
     'DS',
     'gettextCatalog',
diff --git a/openslides/motions/static/js/motions/pdf.js b/openslides/motions/static/js/motions/pdf.js
index f7803f3bc..070918641 100644
--- a/openslides/motions/static/js/motions/pdf.js
+++ b/openslides/motions/static/js/motions/pdf.js
@@ -17,9 +17,10 @@ angular.module('OpenSlidesApp.motions.pdf', ['OpenSlidesApp.core.pdf'])
     'Config',
     'Motion',
     'MotionComment',
+    'MotionPollDecimalPlaces',
     'OpenSlidesSettings',
     function($q, $filter, operator, gettextCatalog, PDFLayout, PdfMakeConverter, ImageConverter,
-        HTMLValidizer, Category, Config, Motion, MotionComment, OpenSlidesSettings) {
+        HTMLValidizer, Category, Config, Motion, MotionComment, MotionPollDecimalPlaces, OpenSlidesSettings) {
         /**
          * Provides the content as JS objects for Motions in pdfMake context
          * @constructor
@@ -185,40 +186,41 @@ angular.module('OpenSlidesApp.motions.pdf', ['OpenSlidesApp.core.pdf'])
                                 column2.push('');
                                 column3.push('');
                             }
+                            var precision = MotionPollDecimalPlaces.getPlaces(poll);
                             // yes
                             var yes = poll.getVote(poll.yes, 'yes');
                             column1.push(gettextCatalog.getString('Yes') + ':');
-                            column2.push(yes.value);
+                            column2.push($filter('number')(yes.value, precision));
                             column3.push(yes.percentStr);
                             // no
                             var no = poll.getVote(poll.no, 'no');
                             column1.push(gettextCatalog.getString('No') + ':');
-                            column2.push(no.value);
+                            column2.push($filter('number')(no.value, precision));
                             column3.push(no.percentStr);
                             // abstain
                             var abstain = poll.getVote(poll.abstain, 'abstain');
                             column1.push(gettextCatalog.getString('Abstain') + ':');
-                            column2.push(abstain.value);
+                            column2.push($filter('number')(abstain.value, precision));
                             column3.push(abstain.percentStr);
                             // votes valid
                             if (poll.votesvalid) {
                                 var valid = poll.getVote(poll.votesvalid, 'votesvalid');
                                 column1.push(gettextCatalog.getString('Valid votes') + ':');
-                                column2.push(valid.value);
+                                column2.push($filter('number')(valid.value, precision));
                                 column3.push(valid.percentStr);
                             }
                             // votes invalid
                             if (poll.votesvalid) {
                                 var invalid = poll.getVote(poll.votesinvalid, 'votesinvalid');
                                 column1.push(gettextCatalog.getString('Invalid votes') + ':');
-                                column2.push(invalid.value);
+                                column2.push($filter('number')(invalid.value, precision));
                                 column3.push(invalid.percentStr);
                             }
                             // votes cast
                             if (poll.votescast) {
                                 var cast = poll.getVote(poll.votescast, 'votescast');
                                 column1.push(gettextCatalog.getString('Votes cast') + ':');
-                                column2.push(cast.value);
+                                column2.push($filter('number')(cast.value, precision));
                                 column3.push(cast.percentStr);
                             }
                         }
diff --git a/openslides/motions/static/js/motions/projector.js b/openslides/motions/static/js/motions/projector.js
index 4b2854f30..d7107eded 100644
--- a/openslides/motions/static/js/motions/projector.js
+++ b/openslides/motions/static/js/motions/projector.js
@@ -26,7 +26,9 @@ angular.module('OpenSlidesApp.motions.projector', [
     'User',
     'Notify',
     'ProjectorID',
-    function($scope, Config, Motion, MotionChangeRecommendation, ChangeRecommendationView, User, Notify, ProjectorID) {
+    'MotionPollDecimalPlaces',
+    function($scope, Config, Motion, MotionChangeRecommendation, ChangeRecommendationView, User,
+        Notify, ProjectorID, MotionPollDecimalPlaces) {
         // Attention! Each object that is used here has to be dealt on server side.
         // Add it to the coresponding get_requirements method of the ProjectorElement
         // class.
@@ -67,8 +69,21 @@ angular.module('OpenSlidesApp.motions.projector', [
             $scope.motion = Motion.get(motionId);
             $scope.amendment_diff_paragraphs = $scope.motion.getAmendmentParagraphsLinesDiff();
             $scope.viewChangeRecommendations.setVersion($scope.motion, $scope.motion.active_version);
+            _.forEach($scope.motion.polls, function (poll) {
+                MotionPollDecimalPlaces.getPlaces(poll, true).then(function (decimalPlaces) {
+                    precisionCache[poll.id] = decimalPlaces;
+                });
+            });
         });
 
+        var precisionCache = {};
+        $scope.getPollVotesPrecision = function (poll) {
+            if (!precisionCache[poll.id]) {
+                return 0;
+            }
+            return precisionCache[poll.id];
+        };
+
         // Change recommendation viewing
         $scope.viewChangeRecommendations = ChangeRecommendationView;
         $scope.viewChangeRecommendations.initProjector($scope, Motion.get(motionId), $scope.mode);
diff --git a/openslides/motions/static/js/motions/site.js b/openslides/motions/static/js/motions/site.js
index 00efc70fc..2bce52ba7 100644
--- a/openslides/motions/static/js/motions/site.js
+++ b/openslides/motions/static/js/motions/site.js
@@ -750,7 +750,8 @@ angular.module('OpenSlidesApp.motions.site', [
     'gettextCatalog',
     function (gettextCatalog) {
         return {
-            getFormFields: function () {
+            getFormFields: function (precision) {
+                var step = Math.pow(10, -precision);
                 return [
                 {
                     key: 'yes',
@@ -758,6 +759,7 @@ angular.module('OpenSlidesApp.motions.site', [
                     templateOptions: {
                         label: gettextCatalog.getString('Yes'),
                         type: 'number',
+                        step: step,
                         required: true
                     }
                 },
@@ -767,6 +769,7 @@ angular.module('OpenSlidesApp.motions.site', [
                     templateOptions: {
                         label: gettextCatalog.getString('No'),
                         type: 'number',
+                        step: step,
                         required: true
                     }
                 },
@@ -776,6 +779,7 @@ angular.module('OpenSlidesApp.motions.site', [
                     templateOptions: {
                         label: gettextCatalog.getString('Abstain'),
                         type: 'number',
+                        step: step,
                         required: true
                     }
                 },
@@ -784,6 +788,7 @@ angular.module('OpenSlidesApp.motions.site', [
                     type: 'input',
                     templateOptions: {
                         label: gettextCatalog.getString('Valid votes'),
+                        step: step,
                         type: 'number'
                     }
                 },
@@ -792,6 +797,7 @@ angular.module('OpenSlidesApp.motions.site', [
                     type: 'input',
                     templateOptions: {
                         label: gettextCatalog.getString('Invalid votes'),
+                        step: step,
                         type: 'number'
                     }
                 },
@@ -800,6 +806,7 @@ angular.module('OpenSlidesApp.motions.site', [
                     type: 'input',
                     templateOptions: {
                         label: gettextCatalog.getString('Votes cast'),
+                        step: step,
                         type: 'number'
                     }
                 }];
@@ -1130,11 +1137,14 @@ angular.module('OpenSlidesApp.motions.site', [
     'MajorityMethodChoices',
     'Config',
     'MotionPollDetailCtrlCache',
-    function ($scope, MajorityMethodChoices, Config, MotionPollDetailCtrlCache) {
+    'MotionPollDecimalPlaces',
+    function ($scope, MajorityMethodChoices, Config, MotionPollDetailCtrlCache, MotionPollDecimalPlaces) {
         // Define choices.
         $scope.methodChoices = MajorityMethodChoices;
         // TODO: Get $scope.baseChoices from config_variables.py without copying them.
 
+        $scope.votesPrecision = MotionPollDecimalPlaces.getPlaces($scope.poll);
+
         // Setup empty cache with default values.
         if (typeof MotionPollDetailCtrlCache[$scope.poll.id] === 'undefined') {
             MotionPollDetailCtrlCache[$scope.poll.id] = {
@@ -2517,17 +2527,19 @@ angular.module('OpenSlidesApp.motions.site', [
     'gettextCatalog',
     'MotionPoll',
     'MotionPollForm',
+    'MotionPollDecimalPlaces',
     'motionpollId',
     'voteNumber',
     'ErrorMessage',
-    function ($scope, gettextCatalog, MotionPoll, MotionPollForm, motionpollId,
-        voteNumber, ErrorMessage) {
+    function ($scope, gettextCatalog, MotionPoll, MotionPollForm, MotionPollDecimalPlaces,
+        motionpollId, voteNumber, ErrorMessage) {
         // set initial values for form model by create deep copy of motionpoll object
         // so detail view is not updated while editing poll
         var motionpoll = MotionPoll.get(motionpollId);
         $scope.model = angular.copy(motionpoll);
         $scope.voteNumber = voteNumber;
-        $scope.formFields = MotionPollForm.getFormFields();
+        var precision = MotionPollDecimalPlaces.getPlaces(motionpoll);
+        $scope.formFields = MotionPollForm.getFormFields(precision);
         $scope.alert = {};
 
         // save motionpoll
diff --git a/openslides/motions/static/templates/motions/motion-detail.html b/openslides/motions/static/templates/motions/motion-detail.html
index bf533ad27..720ece363 100644
--- a/openslides/motions/static/templates/motions/motion-detail.html
+++ b/openslides/motions/static/templates/motions/motion-detail.html
@@ -404,7 +404,7 @@
                     <td ng-init="voteYes = poll.getVote(poll.yes, 'yes')">
                       <span class="result-label"><translate>Yes</translate>:</span>
                       <span class="result_value">
-                        {{ voteYes.value }} {{ voteYes.percentStr }}
+                        {{ voteYes.value | number:votesPrecision }} {{ voteYes.percentStr }}
                       </span>
                       <div ng-if="voteYes.percentNumber">
                         <uib-progressbar value="voteYes.percentNumber" type="success"></uib-progressbar>
@@ -416,7 +416,7 @@
                     <td ng-init="voteNo = poll.getVote(poll.no, 'no')">
                       <span class="result-label"><translate>No</translate>:</span>
                       <span class="result_value" >
-                        {{ voteNo.value }} {{ voteNo.percentStr }}
+                        {{ voteNo.value | number:votesPrecision }} {{ voteNo.percentStr }}
                       </span>
                       <div ng-if="voteNo.percentNumber">
                         <uib-progressbar value="voteNo.percentNumber" type="danger"></uib-progressbar>
@@ -428,7 +428,7 @@
                     <td ng-init="voteAbstain = poll.getVote(poll.abstain, 'abstain')">
                       <span class="result-label"><translate>Abstain</translate>:</span>
                       <span class="result_value">
-                        {{ voteAbstain.value }} {{ voteAbstain.percentStr }}
+                        {{ voteAbstain.value | number:votesPrecision }} {{ voteAbstain.percentStr }}
                       </span>
                       <div ng-if="voteAbstain.percentNumber">
                         <uib-progressbar value="voteAbstain.percentNumber" type="warning"></uib-progressbar>
@@ -440,7 +440,7 @@
                     <td ng-init="votesValid = poll.getVote(poll.votesvalid, 'votesvalid')">
                       <span class="result-label"><translate>Valid votes</translate>:</span>
                       <span class="result_value">
-                        {{ votesValid.value }} {{ votesValid.percentStr }}
+                        {{ votesValid.value | number:votesPrecision }} {{ votesValid.percentStr }}
                       </span>
                   <!-- invalid votes -->
                   <tr ng-if="poll.votesinvalid !== null">
@@ -449,7 +449,7 @@
                     <td ng-init="votesInvalid = poll.getVote(poll.votesinvalid, 'votesinvalid')">
                       <span class="result-label"><translate>Invalid votes</translate>:</span>
                       <span class="result_value">
-                        {{ votesInvalid.value }} {{ votesInvalid.percentStr }}
+                        {{ votesInvalid.value | number:votesPrecision }} {{ votesInvalid.percentStr }}
                       </span>
                   <!-- votes cast -->
                   <tr class="total" ng-if="poll.votescast !== null">
@@ -458,7 +458,7 @@
                     <td ng-init="votesCast = poll.getVote(poll.votescast, 'votescast')">
                       <span class="result-label"><translate>Votes cast</translate>:</span>
                       <span class="result_value">
-                        {{ votesCast.value }} {{ votesCast.percentStr }}
+                        {{ votesCast.value | number:votesPrecision }} {{ votesCast.percentStr }}
                       </span>
 
                   <!-- majority calculation -->
@@ -479,10 +479,10 @@
                     <td>
                       <div os-perms="motions.can_manage">
                         <span class="text-success" ng-if="isReached() >= 0" translate>
-                          Quorum ({{ voteYes.value - isReached() }}) reached.
+                          Quorum ({{ (voteYes.value - isReached()) | number:votesPrecision }}) reached.
                         </span>
                         <span class="text-danger" ng-if="isReached() < 0" translate>
-                          Quorum ({{ voteYes.value - isReached() }}) not reached.
+                          Quorum ({{ (voteYes.value - isReached()) | number:votesPrecision }}) not reached.
                        </span>
                       </div>
 
diff --git a/openslides/motions/static/templates/motions/slide_motion.html b/openslides/motions/static/templates/motions/slide_motion.html
index 7916ec22a..abe461ed4 100644
--- a/openslides/motions/static/templates/motions/slide_motion.html
+++ b/openslides/motions/static/templates/motions/slide_motion.html
@@ -31,7 +31,7 @@
               <td ng-init="voteYes = poll.getVote(poll.yes, 'yes')">
                 <span class="result_label"><translate>Yes</translate>:</span>
                 <span class="result_value">
-                  {{ voteYes.value }} {{ voteYes.percentStr }}
+                  {{ voteYes.value | number:getPollVotesPrecision(poll) }} {{ voteYes.percentStr }}
                 </span>
                 <div ng-if="voteYes.percentNumber">
                   <uib-progressbar value="voteYes.percentNumber" type="success"></uib-progressbar>
@@ -43,7 +43,7 @@
               <td ng-init="voteNo = poll.getVote(poll.no, 'no')">
                 <span class="result_label"><translate>No</translate>:</span>
                 <span class="result_value" >
-                  {{ voteNo.value }} {{ voteNo.percentStr }}
+                  {{ voteNo.value | number:getPollVotesPrecision(poll) }} {{ voteNo.percentStr }}
                 </span>
                 <div ng-if="voteNo.percentNumber">
                   <uib-progressbar value="voteNo.percentNumber" type="danger"></uib-progressbar>
@@ -55,7 +55,7 @@
               <td ng-init="voteAbstain = poll.getVote(poll.abstain, 'abstain')">
                 <span class="result_label"><translate>Abstain</translate>:</span>
                 <span class="result_value">
-                  {{ voteAbstain.value }} {{ voteAbstain.percentStr }}
+                  {{ voteAbstain.value | number:getPollVotesPrecision(poll) }} {{ voteAbstain.percentStr }}
                 </span>
                 <div ng-if="voteAbstain.percentNumber">
                   <uib-progressbar value="voteAbstain.percentNumber" type="warning"></uib-progressbar>
diff --git a/openslides/poll/models.py b/openslides/poll/models.py
index 545e3f111..aec301cb3 100644
--- a/openslides/poll/models.py
+++ b/openslides/poll/models.py
@@ -1,12 +1,12 @@
 import locale
+from decimal import Decimal
 from typing import Type  # noqa
 
 from django.core.exceptions import ObjectDoesNotExist
+from django.core.validators import MinValueValidator
 from django.db import models
 from django.utils.translation import ugettext as _
 
-from openslides.utils.models import MinMaxIntegerField
-
 
 class BaseOption(models.Model):
     """
@@ -44,7 +44,8 @@ class BaseVote(models.Model):
     Subclasses have to define an option field. This must be a ForeignKeyField
     to a subclass of BasePoll.
     """
-    weight = models.IntegerField(default=1, null=True)  # Use MinMaxIntegerField
+    weight = models.DecimalField(default=Decimal('1'), null=True, validators=[
+        MinValueValidator(Decimal('-2'))], max_digits=15, decimal_places=6)
     value = models.CharField(max_length=255, null=True)
 
     class Meta:
@@ -72,9 +73,12 @@ class CollectDefaultVotesMixin(models.Model):
     Mixin for a poll to collect the default vote values for valid votes,
     invalid votes and votes cast.
     """
-    votesvalid = MinMaxIntegerField(null=True, blank=True, min_value=-2)
-    votesinvalid = MinMaxIntegerField(null=True, blank=True, min_value=-2)
-    votescast = MinMaxIntegerField(null=True, blank=True, min_value=-2)
+    votesvalid = models.DecimalField(null=True, blank=True, validators=[
+        MinValueValidator(Decimal('-2'))], max_digits=15, decimal_places=6)
+    votesinvalid = models.DecimalField(null=True, blank=True, validators=[
+        MinValueValidator(Decimal('-2'))], max_digits=15, decimal_places=6)
+    votescast = models.DecimalField(null=True, blank=True, validators=[
+        MinValueValidator(Decimal('-2'))], max_digits=15, decimal_places=6)
 
     class Meta:
         abstract = True
diff --git a/openslides/utils/rest_api.py b/openslides/utils/rest_api.py
index bd44c5fe9..dad1b61a5 100644
--- a/openslides/utils/rest_api.py
+++ b/openslides/utils/rest_api.py
@@ -18,6 +18,7 @@ from rest_framework.routers import DefaultRouter
 from rest_framework.serializers import ModelSerializer as _ModelSerializer
 from rest_framework.serializers import (  # noqa
     CharField,
+    DecimalField,
     DictField,
     Field,
     FileField,