I have a basic math question. I am trying to get a percentage from a range of numbers and the algorithm is troubling me.
Say I have a range of -5 to +5 and I want to know what percentage is in between given a value. I know that -5 would be equivalent to 0% and 5 would be 100%, with 0 being 50%.
I tried to add 5 to bring up the scale, but it just feels like a hack. I would like it to feel dynamic so that I can give it any range and successfully work.
Ex.
percent = (5 + value) * 100 / 10
How do I figure out what value should be the a general case?
1 Answer