12.5% is the change from 152 to 171
Calculation steps:
[( 171 - 152 ) ÷ 152] x 100 = 12.5%
Formula
Percentage change = [(171 - 152) / 152] x 100
Subtract the new number by the original number
171 - 152 = 19
19 ÷ 152 = 0.125
0.125 x 100 = 12.5%
Example