JSFiddle - React, Tailwind, and code Playground

HTML

<p id="inputText">
  0
</p>

JavaScript

var output  = document.getElementById('inputText').innerHTML;
output = parseFloat(output);
if(output  != '0'){
inputText.innerHTML= "(" + (output *2)
.toFixed(3) + "," +  (output*2).toFixed(3) + ")";
}