33.73% is the change from 255 to 341
Calculation steps:
[( 341 - 255 ) ÷ 255] x 100 = 33.73%
Formula
Percentage change = [(341 - 255) / 255] x 100
Subtract the new number by the original number
341 - 255 = 86
86 ÷ 255 = 0.33725490196078434
0.33725490196078434 x 100 = 33.73%