Calculations

I know I cant be the only one whos tired of having to take a guess at how much damage a percent based ability will to to any enemy. Would it not be nice and more helpful if Riot did the math for us for once. You know just click on your target and hover over your tooltip and next to the percent it would read how much your ability will do to them. I know its not hard to do and it would honestly make a better difference than changing the text font. Just an idea. Pls Riot.