If all the statistics are coming from the front page of the Bustabit website (and you are applying those formulas) at least we understand where the data is coming from and how you are using it. I would still not be sure about the future potential bankroll profits but it is a great tool to look up past profits based on the date and amounts invested.
Apart from the explanation below do you have any other updates on the website?
I am now breaking down the exact formula on the front page of the site to make it clear for everyone and it's as follows: (your bankroll stake) * (daily bankroll profit profit)
To predict future profits, this is the formula used:
(your bankroll stake) * (average daily profit of the last 60 days)