Further my previous post yesterday, I've attached a spreadsheet to cover Straight up bets, Dozen bets, and even chances bets.
This will give you an idea of what you might be face with when you're playing in progression. It will calculate how much is your buy in amount, gross win, capital, etc based on your 1st starting bet.
I cannot stress enough that this is a progression, it involves huge risk. Anything can happen in this game. I'm currently up by about $8000 since I've started playing this method.
PS: to prevent formula from accidental deletes, I've locked the sheet and only the column in grey across the workbook is able to be edited.