Yea EP is effort points. So this is how it goes:You choose the pokemon that you want to see. Then it'll give you it's base stats. So what you do is,put those base stats onto the first line (where it says stats) then on the bottom is the EP,there you put how many points you've given it already.
So I recommend you keep track of how many points you give it on a piece of paper. The way I do it is by tick marks,every four tick marks=+1 for that stat in the next level gain.