With 100% of the winnings in one month and 100% of the losses in the next, you would AT MOST have won two times $994.98 + your percentage of the player his losses.
‘at most’ because if you have revenue of other players, then your balance would not be -994.98 at the end of the first month, but higher. (Of course, additional players can also make it even better by winning – losing next month also, but the more players, the less likely a total negative revenue of them is.)
However, keep going with the profit!