79.61% is the change from 255 to 458
Calculation steps:
[( 458 - 255 ) ÷ 255] x 100 = 79.61%
Formula
Percentage change = [(458 - 255) / 255] x 100
Subtract the new number by the original number
458 - 255 = 203
203 ÷ 255 = 0.796078431372549
0.796078431372549 x 100 = 79.61%