This is a Scrypt mining service. Not bitcoin.
GAWMiner Rates today per GH are:
GenesisMulti 0.00001627 BTC
GenesisGuild 0.00001398 BTC
GenesisHash 0.00001398 BTC
You can get 1 GH for $0.58 at the hash market currently (min 10 GH)
You can get 10 GH complete free currently (my sig).
Please mention the source of your data and the associated costs (maintenance etc.) with these rates. I'm sure the actual cost is quiet high rather than what they show as FattyMcButterpants has already pointed out.