The information’s already provided in the question should never be neglected. They are actually the required information’s to reach the correct answer.
Total number of players in the little league = 85
Percentage of players that are left handed = 80%
Number of players that are left handed = (80/100) * 85
= (8/10) * 85
= 680/10
= 68
So among the total of 85 players in the little league, there are 68 left handed players. I hope that the answer and the technique has helped you.