281.25% is the change from 128 to 488
Calculation steps:
[( 488 - 128 ) ÷ 128] x 100 = 281.25%
Formula
Percentage change = [(488 - 128) / 128] x 100
Subtract the new number by the original number
488 - 128 = 360
360 ÷ 128 = 2.8125
2.8125 x 100 = 281.25%