Calculating Payouts From Positive Moneyline Odds A $50 bet at +150 odds, for instance, is calculated as 150/100 (which yields 1.5), multiplied by $50 (1.5*$50=$75). A winning $50 bet at +150 odds would return $125 total to the bettor ($75 profit plus the original $50 bet.)
A two-team parlay (assuming all bets being 50/50 propositions) has 4 possible outcomes (Win-Win, Win-Lose, Lose-Win, Lose-Lose), so you should hit 1 out of every 4 times or odds of 3-1 against you, yet the standard payoff for a 2 team parlay is 13-5 (2.6-1).