plz guys say to me ... how much can i mine UTC with 4 card R9 290 in 24 hour with new N factor ?
I believe about 320 coins +/- 20 coins @ current difficulty
That can't be the explanation, block size is 50 not 52
the 2 extra coins are the amount you had confirmed in pool balance before the 50 block got confirmed. All funds would've been sent at the same time.