Another thing that probably contributes to this is your commission values. I read on the manual that commission is calculated per 10000 contracts. So I suppose the proper commission value would be $7*1000 /10000 = $0.7. (I'm assuming we have the same case of $7 commission per trade)

I tested this by using a demo account by comparing the status window of Zorro and MT4 (since I'm using Global Prime) and tradetest and they match.