wow this seem like a lot of work
using your table of chance I wanted to know what happen if you always play to number 10 or 11 the 216 times using the max bet (30k) and this is what i got:
cost = 216*30000=6.480.000
reward = 216*(12,5/100)*8*30000 = 6.480.000
profit = 0
-edit-
now that I think again is kinda logical because:
chance (%) = 100/(xN)
for example:
chance for number 5 = 100/36 = 2.78 the same as on your table =S
so now if we do
profit = NumOfGames*Bet - NumOfGames*(Chance/100)*(xN)*Bet
profit = NumOfGames*Bet*(1 - (Chance/100)*(xN))
profit = NumOfGames*Bet*(1 - 1)
profit = NumOfGames*Bet*0
profit = 0