I've recently noticed a lot of people still don't know this so I'll make a thread. When you successfully evade it takes 23 frames. You can only do successful evades if the opponent already has an attack starting up on the screen. Now, pick the character you want to evade punish and look at the total frames on their moves from the VFDC movelist. Reduce 23 frames from those total frames and the amount of disadvantage you have (need at least -1 or you can't do a successful evade) and you'll know your advantage. Example: Goh 6K has 48 total frames. Reduce 23 and your the disadvantage you'd have and you'll see that you'd be at +24 from evading it at -1 and at +16 if evading it from -9. Enjoy.