Improve nFees calculation
Improve nFees calculation

IOCoin/DIONS,IOCoin/DIONS,IOCoin/iocoin,IOCoin/DIONS,IOCoin/DIONS,IOCoin/DIONS,IOCoin/iocoin,IOCoin/DIONS,IOCoin/iocoin,IOCoin/iocoin,IOCoin/DIONS,IOCoin/DIONS,IOCoin/iocoin