Question

Kathleen, a professional golfer, had an average score last season

of 80 points. This season, her average score has been 72 points.
What is the percent of decrease in Kathleen's average score?

Answer 1

80 100%
72 X%
X%=72•100/80
X=90 %
100-90=10%
Decrease in Kathleen’s average score is 10%. Good luck.

Answer 2

(|currentavg-initialaverage|/initialavg)*100 gives percent difference so:

(|72-80|)/(80)*100

gives a 10 percent difference (decrease)