There is a large illuminated screen behind the wheel where the PowerUP numbers are revealed, and then if the bonus round is triggered, the full roulette wheel numbers and their accompanying multipliers are also displayed.
What these multipliers will be is anyone’s guess. Each round, an RNG will assign a multiplier to each number. So it can be 50X, 100X, 500X or higher past the first round. Whatever it is, it’s more than standard roulette winnings, which is what gives this game it’s added layer of thrill.