531.25% is the change from 128 to 808
Calculation steps:
[( 808 - 128 ) ÷ 128] x 100 = 531.25%
Formula
Percentage change = [(808 - 128) / 128] x 100
Subtract the new number by the original number
808 - 128 = 680
680 ÷ 128 = 5.3125
5.3125 x 100 = 531.25%