The break even point is 125′ – 90′ = 35′ appoximately or when dealer needs an ace and king in a unique sequence, which is to be assumed, the probability is half as great to reach the jackpot, therefore the break even point will be 250′ – 180′ = 70′ approximately.

We have ignored that 5 or 10 % of the bets for the jackpot playing are deducted to fill the next jackpot which therefore will not start as a 0.- jackpot.

We did not include the cards that were just drawn into the probability calculation.