shortening javascipt number

Question

Hello , I am looking for an efficient way to cut floating number at Javascript which are long. I need this because my output for taking percentage of two numbers can be sometimes like 99.4444444 while I am only interested in the first 2 digits after "." such as 99.44

My current percentage taking function for 2 numbers:

function takePercentage(x,y){
     return (x /y) * 100;
}

Answer 1

You can use number.toFixed:

function takePercentage(x,y){
     return ((x /y) * 100).toFixed(2);
}

Answer 2

function takePercentage(x,y){
     n = (x /y) * 100;
     return n.toPrecision(2);
}

That should do it!

Answer 3

How about this:

Math.round( myfloatvalue*100 ) / 100