index.js

let number = '1234568,65';
number = number.replace(/,/g, '.');

const parsedNumber = numeral(number);

console.log(number);
console.log('Format', parsedNumber.format('0,0.00'))
console.log('Value', parsedNumber.value())

numeral.js

const numeral = require("numeral");

numeral.register('locale', 'cop', {
  delimiters: {
      thousands: ',',
      decimal: '.'
  },
  abbreviations: {
      thousand: 'k',
      million: 'm',
      billion: 'b',
      trillion: 't'
  },
  ordinal : function (number) {
      return '';
  },
  currency: {
      symbol: '$'
  }
});

// switch between locales
numeral.locale('cop');  

exports = {numeral}