I don't remember exactly, but i guess i wrote this because we work with money. Then we should use integers as long as it possible, and only in the end, before showing result convert to floating point. See my solution for example.

Okay, now it works, thank you for great kata!

Currently it doesn't work at all. I mean service, not this kata.

Got error on random test:

TypeError: w.replace is not a function
   at solution
        at /runner/frameworks/javascript/cw-2.js:241:21
    at Promise._execute
    at Promise._resolveFromExecutor
    at new Promise
    at Object.Test.describe

        at Object.exports.runInThisContext

This is bad-bad hack: 'Math.round(total * 100) / 100'

Instead use [385, 193, 97, 49, 10] and at the end of calculation - devide by 100.

Better to return StringBuilder instead of string from reverse method.