Ranked LP gains and losses.

As you can see from my op.gg ink i have a_** recent**_ winrate of 61 percent. How come I am LOSING more LP per LOSS then WINNING LP per win. I win 12-14 LP and lose 21-24. Even though i am in silver the op.gg site says i have iron mmr, wtf. This makes no sense whatsoever. My ranked profile says that I am shielded from being demoted, even though i win multiple games in silver. I sometimes demote if i am on a bad loss streak because of this. How can you climb when you lose more LP than you gain? [draven-pose]