So... they charged me a 20,21% maintenance fee?? Are you kidding me??. 
35 cents USD per 10 TH, so in your case, .35 x 22.5 = $7.875 which is then deducted in BTC from your daily Revenue.
I suppose you mean 35 cents / 1 TH not 10 TH
Ouch.....
And those 35 cents / 1 TH are going to be decreased when BTC increases or not?