125% is the change from 128 to 288
Calculation steps:
[( 288 - 128 ) ÷ 128] x 100 = 125%
Formula
Percentage change = [(288 - 128) / 128] x 100
Subtract the new number by the original number
288 - 128 = 160
160 ÷ 128 = 1.25
1.25 x 100 = 125%
Example