gnibeil/simplekolecalc
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add simple solution

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da frlan darum bat, zur weiteren Verwendung
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vv01f 2023-03-28 01:12:30 +02:00
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commit 200e9b5a11
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<!DOCTYPE html>
<html>
<head>
<style>
input[type='number']{text-align:right;}
</style>
</head>
<body>
<p>Bei Eingaben werden Komma und Punkt als Dezimaltrennzeichen betrachtet.</p>
<table>
<tr><td>Berechne:</td><td><input type="radio" name="b" value="k" id="bk" class="bb" checked="checked" /><label for="bk">KoLe</label><input type="radio" name="b" value="e" id="be" class="bb" /><label for="be">Einnahmen</label></td></tr>
<tr><td>Einnahme</td><td><input type="number" step="0.01" id="e" value="1"/> €</td></tr>
<tr><td>Umsatzsteuer</td><td><input type="number" step="0.01" id="u" value="19"/> %</td></tr>
<tr><td>Entropieumlage</td><td><input type="number" step="0.01" id="z" value="23"/> %</td></tr>
<tr><td>KoLe</td><td><input type="number" step="0.01" id="k" value=""/> €</td></tr>
<tr><td>&nbsp;</td><td><input value="Berechnen" id="b" type="button"/></td></tr>
</table>
<script>
var e=document.getElementById('e');
var u=document.getElementById('u');
var z=document.getElementById('z');
var k=document.getElementById('k');
var bk=document.getElementById('bk');
var be=document.getElementById('be');
var b = document.getElementById("b");
b.addEventListener("click", function(){
if(bk.checked){
k.value = Math.round( parseFloat(e.value.replace(/,/g, '.')) / ( 1 + parseFloat(u.value.replace(/,/g, '.')) / 100 ) * ( 1 - parseFloat(z.value.replace(/,/g, '.')) / 100 ) * 100 ) / 100;
}else// if(be.checked)
{
e.value = Math.round( parseFloat(k.value.replace(/,/g, '.')) * ( 1 + parseFloat(u.value.replace(/,/g, '.')) / 100 ) / ( 1 - parseFloat(z.value.replace(/,/g, '.')) / 100 ) * 100 ) / 100;
}
});
</script>
</body>
</html>