You would get your stake returned if your bet wins so that your return is $220. For example, an American odds of -120 means that you must wager $120 to earn a $100 profit. Negative odds(-): It indicates the amount you would need to wager to get a $100 profit. You would also get your stake returned for a successful bet, so your return would be $220. For example, an American odds of +120 would win $120 on a successful $100 bet.
Positive odds (+): It states the amounts of profit you would earn from a $100 bet if your wager is successful.
The American odds usually start with a plus(+) or a minus(-). The American odds are also identified as Moneyline odds.