Genesis mining Ethereum contract is not profitable at the current hash rate growth.
Cost of 100 M/Hs $2716 ~$2800
If the Hash rate continues to grow at the same rate you will get about 4.3 ETH coins (If you started in early June 2017). That is it!!!!
ETH must be $800 to break even and get a tiny profit.
Much more profitable is to buy the coins. At $330 You get about 8.3 coins.