Round up to 2 decimal places (Javascript)

Question

I want to round up the result of this to 2 decimal places. I already tried Math.floor*(Math.pow (1.02,7)*100)/100 But I get 1,150 instead of 1,148.69 - the answer I aim to be returned.

A snippet of my code atm:

function money (amount) {

  return amount*(Math.pow (1.02,7))
}

money(1000);

This may be a duplicate question. [Check the answers here](https://stackoverflow.com/questions/11832914/round-to-at-most-2-decimal-places-only-if-necessary) — Yuran Pereira, Aug 14 '20 at 00:01
`Number.toFixed(2)` is what you need. Take note that a String is returned. — StackSlave, Aug 14 '20 at 00:06
"*I get 1,150 instead of 1,148.69*" - I cannot reproduce.`Math.floor(Math.pow (1.02,7)*100)/100` does return the expected `1.14` for me. Notice that `1.14869` has 5 decimal places not just 2. — Bergi, Aug 14 '20 at 00:11

score 3 · Answer 1 · answered Aug 14 '20 at 00:02

3

You can use toFixed to round to a certain decimal

function money (amount) {

  return (amount*(Math.pow (1.02,7))).toFixed(2)
}

console.log(money(1000))

answered Aug 14 '20 at 00:02

Lex

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score 1 · Accepted Answer · answered Aug 14 '20 at 00:04

1

function money (amount) {
    return  Math.round(((amount*(Math.pow (1.02,7))) * 100)) / 100;
}
console.log(money(1000));

This will give the

answered Aug 14 '20 at 00:04

Darth Vader

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score 0 · Answer 3 · answered Aug 14 '20 at 00:10

0

Here is how .toFixed() is used:

function money(amount){
  return (amount*Math.pow(1.02, 7)).toFixed(2);
}
console.log(money(1000));

answered Aug 14 '20 at 00:10

StackSlave

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Round up to 2 decimal places (Javascript)

3 Answers3