960% is the change from 15 to 159
Calculation steps:
[( 159 - 15 ) ÷ 15] x 100 = 960%
Formula
Percentage change = [(159 - 15) / 15] x 100
Subtract the new number by the original number
159 - 15 = 144
144 ÷ 15 = 9.6
9.6 x 100 = 960%
Example