JSFiddle - React, Tailwind, and code Playground
JavaScript
/* ROGERIO - http://pt.stackoverflow.com/users/25720/rogerio-de-moraes */
var numero = '000,5%';
alert(numero.split(',').join('.').split('%').join(''));
/* ROGERIO - http://pt.stackoverflow.com/users/25720/rogerio-de-moraes */