How does win ratio works exactly can anyone tell me pls ^^,also is havin a win ratio of 2.050 good?

Your win ratio is the number of your wins divided by the number of your losses. And 2.050 is good, I think, I believe it means that you have around 2 wins per loss.

thank you now i undertsand it better

it's getting harder to keep that win ratio every game u play. because if u win 4 games and lose 1, u got a ratio of 4.0000, but if u have already fought 5000 fights, it's less important if u win one or lose one, but how u play on a long time.
means: u can see how good/bad a player is if he got a win/loss ratio with how much qi