536.72% is the change from 128 to 815
Calculation steps:
[( 815 - 128 ) ÷ 128] x 100 = 536.72%
Formula
Percentage change = [(815 - 128) / 128] x 100
Subtract the new number by the original number
815 - 128 = 687
687 ÷ 128 = 5.3671875
5.3671875 x 100 = 536.72%