champion match xp?

so ive been looking everywhere and i cant find where it says what the standard experience earned per match is. i know you get a ton more if you win compared to if you lose but whats the actual stats? id say if you lose you can earn around 200ish while if you win you can go from 800-1000. i know i have heard that this is also based on how long the game is so im just curious to know more