[removed] calculate x% of a number

Question

I am wondering how in javascript if i was given a number (say 10000) and then was given a percentage (say 35.8%)

how would I work out how much that is (eg 3580)

Answer 1

I use two very useful JS functions: http://blog.bassta.bg/2013/05/rangetopercent-and-percenttorange/

function rangeToPercent(number, min, max){
   return ((number - min) / (max - min));
}

and

function percentToRange(percent, min, max) {
   return((max - min) * percent + min);
}