let say your betting 20$ parlay
so...
1s x4 = 20
4s x3 = 4 times your wager but you can hit 3/4 combos and it pays the odds of the 3 game parlay combos
6s x 2 = 6 times your wager but you can hit 2/4 combos and it pays the odds of the 2 game parlay combos