how does the market work?

[vengeances]

i've recently seen something weird in the transfer market. i was bidding on a player with the following overall and percentage (pic.1), i've lost the player to a manager at the level 9(i'm at level 12). so i saw the player after the bidding time checking his new percentage. (pic.2)
does anybody know how the transfer market changes the player's overall and the percentage. or when i put a player in the market, how his skills going to be changed for the auction and after the transfer? are the player's stats going to be counted for the price?


before auction



After auction



My team and the team won the auction