How do I know how much each bet will pay out?
Next to each available wager, you see the odds, which measure how much a $100 wager would pay out. The "+" odds show the amount of money you'd win if you bet $100. For example, with odds of +130, a wager of $100 will give you a potential win of $130 (plus your original stake). On the other hand, "-" odds show the bet amount needed to win $100. With -130 odds, that means a $130 wager will return a potential win of $100 (plus your original stake).
In addition to payout, the "-" and "+" next to the odds also indicate whether a wager is more or less likely to win. While the "-" wagers have a higher chance of winning and the "+" wagers a lower chance, these implied probabilities do not guarantee a win or loss.