RavenMiner - noob questions

[Suchodolsky]

Hello,

1. Using any type of miner we have to pay fee of some %. When this percent is being calculated and subtracted from our "account"? Does it take some amount of our computing power or is it more like it takes some coins from mining pool?

2.Mining pool fees. I wonder if they are already showed in our mining pool balance (so they take 2% p.e. and what we see is the sum after the fees) or if it's when we get our funds into the wallet. Let's use ravenminer as an example

I'd like to understand more the whole process of those fees, how are they being calculated cause right now I know just the number of %

Thanks in advance,

Suchodolsky