Minergate contracts are very bad indeed. I have test purchased some and I was really stunned by payout rate. I thought that profit will be split like 50/50 and I was in a peace with that but it is rather 80/20.
I got 3406Gh/s for which payout was $1.52 daily.

I said was as I cant check exact numbers as as of now minergate cloud contracts are gone and there is quite a bit of panic in their troll box. It is full of people who cant see their contracts. They literally disappeared from users accounts. 
Also withdrawals are failing so even if you do have something there nobody can get their money out.
Popcorn time.