Max, do you know if the 5% is applied while the earnings are accumulated, or if they are applied at the end, when the coins are being sent out?
Cheers)
2% is taken from block share as blocks are mined. 5% is taken when they are transfered to the exchange to help pay tx fees and exchange fees. On payout your local wallet (or exchange wallet if you do that) pool pays the tx fee, so the amount you see in the Balance is usually what you get (at least when getting BTC as payment).