29.02% is the change from 255 to 329
Calculation steps:
[( 329 - 255 ) ÷ 255] x 100 = 29.02%
Formula
Percentage change = [(329 - 255) / 255] x 100
Subtract the new number by the original number
329 - 255 = 74
74 ÷ 255 = 0.2901960784313726
0.2901960784313726 x 100 = 29.02%