I used this site
http://www.btcserv.net/bitcoin-calculator/to calculate my 24 bitcoin earing, what should be match my earing here / efficiency.
But i recalculated right now, and it says .31 now, before 3 days it sayed .43 (same difficult was shown on the right side), so with .31 it seems fine.
Great link. Interesting.
It's giving you less for 24 hours now because it attempts to take into account the fact that new difficulty will start in a few hours. So it's still too low. Can you post your Mhps and copy/paste the first (summary) section of your stats?