I fixed the image link. You make money, but the money you make won't cover the initial cost of the hashrate you are buying. So I am spending $138 but I will never get the $138 back because the difficulty will increase after 20 months making it unprofitable to run. After 20 months I make $134. I would assume at that time I can't resell the hashrate for much of anything. It seems like the key is to just buy and sell the hashrate.

After 1 year I would still be down $20, but I would hope I could resell the hashrate for more than $20.

If I may ask, how much did you pay for your 100 GHS and how long have you had it?

Also is the electricity part of the maintenance fee or is it separate?