Variables ranges of SCRYPT fees from 1.15% to 2% !
Average 1.5% fees
As opposed to mining on LiteCoinPool that GIVES YOU 2% or 3% (depending on exact timeframe) to mine with them due to their use of merged-mining to support their own costs and then pay YOU back some of the left-over extra earnings.
That's true about the 2%-3% "pay back", but overall with multi-pools you get a better profil:ratio