Results for 142,997,691 bets

I have seen that the wizzard consider 10.000.000 bets a sufficient number of bets for computer simulators to find the results beying reliable and approaching the house edge. My example is a real online casino that has currently 142,997,691 bets and with a house edge of 1%. At this momment the proffit is 0.007650% and the other day was negative. If the wizzard read this can he explain why is this situation on such a huge number of bets?
The site is just-dice.com

The site profit just went to -0.000031% with 143,019,426 bets...