JSFiddle - React, Tailwind, and code Playground

HTML

<div class="testa"></div>
<br>
    <div class="testb"></div>

JavaScript

a = 1,809999
b = 27,94989

a = Math.floor(a * 100) / 100; 
b = Math.floor(b * 100) / 100; 
$(".testa").text(a.toFixed(2));
$(".testb").text(b.toFixed(2));