In a recent study, 20 males used a new weight-loss supplement, and all but 5 of them experienced weight loss after two weeks. In the same study, 100females used the same supplement, and all but 19 of them experienced weight loss after two weeks.

Fill in the blanks of the statement below to make the statement the most reasonable possible.

The new weight-loss was more effective on (male/female)? in the study because only __% of them failed to lose weight after two weeks, whereas __% of the (male/female)? failed to lose weight after two weeks.