This starts as a 5 % bonus for trebles , a 7.5 % bonus for 4 - folds , a 10 % bonus for 5 - folds .
Each additional fold increases the bonus by 10 % until a 100 % bonus is reached for 14 - folds .
This starts as a 5 % bonus for trebles , a 7.5 % bonus for 4 - folds , a 10 % bonus for 5 - folds , and each additional fold increases the bonus by 10 % until a 100 % bonus is reached for 14 - folds .