JSFiddle - React, Tailwind, and code Playground

by Matheus Bavaresco

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-maskmoney/3.0.2/jquery.maskMoney.min.js"></script>
<form>
  <input type="text" name="QTD" id="qtd" class="qtd"/>
  <input type="text" id="total" class="total" name="TOTAL"/>
</form>

JavaScript

$(document).ready(function(){
  $(".total").maskMoney({decimal:",", thousands:"."});
	$("form").on("keyup",".qtd",function(){
  	var valor = 1111;
    var calcular =  valor * $(".qtd").val();	
  	 $(".total").val(parseFloat(calcular).toFixed(2)).focus();
     $(".qtd").focus();
  });
  
  
});