lp

so on my other account i had 15 games losing streak so i am on 49 % win rate now. (went from 45%) i have been playing on the account for the past 4 days or so. and i get 21 lp per win and lose 17. how? i have 49% win rate there

the account op gg http://eune.op.gg/summoner/userName=letsfeedtogether+