@JBardey, are you sure you're talking about the 'number of BTC per 1 MH per day' or are you displaying your total payout? The BTC/MH/day number makes it easy to compare your 'profits'/income with others/other pools/other coins because it doesn't factor in your total hashrate.

Suppose you've received 0.1 BTC from Middlecoin at a given day and you have been hashing for 24 hours at 4 MH/s than you have made 0.1/4=0.025 BTC/MH/day.