12.5% is the change from 128 to 144
Calculation steps:
[( 144 - 128 ) ÷ 128] x 100 = 12.5%
Formula
Percentage change = [(144 - 128) / 128] x 100
Subtract the new number by the original number
144 - 128 = 16
16 ÷ 128 = 0.125
0.125 x 100 = 12.5%
Example