57.25% is the change from 255 to 401
Calculation steps:
[( 401 - 255 ) ÷ 255] x 100 = 57.25%
Formula
Percentage change = [(401 - 255) / 255] x 100
Subtract the new number by the original number
401 - 255 = 146
146 ÷ 255 = 0.5725490196078431
0.5725490196078431 x 100 = 57.25%