The red circle is where you bought the account, at 1953 elo. And the green one is how you managed to fall back at 1780. Let me guess, it was just a bad period with a huge losing spree or is just that you suck and can't playing at this elo. If you're playing at this elo for a week you will get 1400.
LoLking here: http://www.lolking.net/summoner/eune/19249165