Wyatt bought a pair of shoes for $72. The next week he noticed that the price for the same pair of shoes was now $87. Find the percent of change.

(after price-initial price/initial price) 100=percent of change

the initial price = 72

(a week later) after price = 87

87-72=15

15/72=.20833333333

.20833333333*100 = 20.833333333

the percent of change of initial price of $72 and the after price of $87 = 20.833333333 = 2.08%