480% is the change from 15 to 87
Calculation steps:
[( 87 - 15 ) ÷ 15] x 100 = 480%
Formula
Percentage change = [(87 - 15) / 15] x 100
Subtract the new number by the original number
87 - 15 = 72
72 ÷ 15 = 4.8
4.8 x 100 = 480%
Example