I made that chart to show how the hosted mining services compare in fees. The S9 miner is most power efficient but Hashnest is making a profit on the fees they charge you, which is more than the power used by the miner. You will make more mining profit using an Avalon miner at POW88 than an S9 at Hashnest.
Thanks for making an analysis. I have never heard about the avalon before but I know that S9 is one of the best mining equipment on this planet. Maybe I will probably buy some mining contract from them
Avalon made the first world ASIC miners in the whole world which is based in China also. Bitmain is well known , more successful business strategy . But avalon on Pow8.com is more profitable. : )