What is the pool fee for wdc? It says "ACTIVE ACCOUNT: 2.75% POOL FEE (YOU ARE DONATING 0% OF YOUR EARNINGS)"; however, I get around 2.827% if I divide Don_Fee value by Credit value from Transaction history page.
Are you sure of the math ?
Total reward for a block before applying fee (100%) = fee(2.75%) + credit(97.25%)
fee = Total Reward/100 * 2.75
I think you forgot to add the fee to the 100% value
exemple Took from DB :
Credit : 1.04933819
Fee : 0.02967281
Total Reward = 1,079015471
fee =1,079015471/100 * 2.75 = 0,0296729254525 (the same value I had at the begining with rounding error at 10^-7)