now it's a very hard time for miners.i think dev should decrease 5% fee.now 80% of mined coins should pay for electricity cost.miners only earn 20% ,however dev earns 5% ，that means 25% of miner's earning.
I think You can earn much more than requested 3% down on devfee if You focus on those 80% (undervolt/underclock). If it is 80%. Because whatmine calculator gives me less than 50% for QCN and less than 40% for XMR at this moment on my small poor 2x7790 rig hashing ~400 H/s (380 for me) QCN/FCN merged on minergate.