I currently have 135.9 Gh/s and am being offered 0.02131533 bitcoins for a buyout or a management fee of $20.38 per month. How is that that I am being offered this when you are being offered 0.05473304 bitcoins and have just 116.24 Gh/s???
Does anyone else notice any discrepancies like this or have any idea why this is?

Do they factor in how much time is left in the contract?