Lisa had an average score of 85 points. This season her average score has been 68 points. What is the percent of decrease in Lisa's average score?

Question

This question is a percentage problem that I don't know how to do! I need help now!!

Answer 1

Percentage decrease is given by (initial quantity-final quantity)/initial quantity*100

Percentage decrease= (85-68)/85*100%=20%

Percentage increase is given by (final quantity-initial quantity)/initial quantity*100

Note that percentage change (increase or decrease) is always calculated on the initial quantity, meaning the denominator is always the initial quantity.
A negative percentage decrease is a percentage increase and vice versa.