4.31% is the change from 255 to 266
Calculation steps:
[( 266 - 255 ) ÷ 255] x 100 = 4.31%
Formula
Percentage change = [(266 - 255) / 255] x 100
Subtract the new number by the original number
266 - 255 = 11
11 ÷ 255 = 0.043137254901960784
0.043137254901960784 x 100 = 4.31%