JSFiddle - React, Tailwind, and code Playground

HTML

hundreds = <input type="text" id="input100"/><br>
fifties = <input type="text" id="input50"/><br>
twenties = <input type="text" id="input20"/><br>
tens = <input type="text" id="input10"/><br>
fives = <input type="text" id="input5"/><br>
ones = <input type="text" id="input1"/><br>
Total= <span id="totalCount"></span> <br>
<button onclick="addBills()">addBills</button>

JavaScript

function addBills(){
   var hundreds = Number(document.getElementById('input100').value)*100
   ,   fifties = Number(document.getElementById('input50').value)*50
   ,   twenties = Number(document.getElementById('input20').value)*20
   ,   tens = Number(document.getElementById('input10').value)*10
   ,   fives = Number(document.getElementById('input5').value)*5
   ,   ones = Number(document.getElementById('input1').value)
   ,   regTotal = hundreds+fifties+twenties+tens+fives+ones
   ; //end local
   document.getElementById('totalCount').innerHTML=regTotal;
}