understanding outs shouldn't this be a 4% chance to win?!?

[Fatdogs12]

Hey everyone I have an outs question. Okay here is the situation. We are playing holdem and we are on the flop.

I have AK and my opponent has J-10. The flop comes 10-9-2.
Now I have 6 outs to hit and two cards to come. That I believe gives me a 2% chance per card per out for a 24% chance of hitting my cards. The thing is my opponent has 5 outs and therefore a 20% chance of hitting his cards, wouldn't that leave me with only a 4% chance of winning?

I put it into poker stove but it said that my chances were 22% to win. Can anyone explain why?