93.73% is the change from 255 to 494
Calculation steps:
[( 494 - 255 ) ÷ 255] x 100 = 93.73%
Formula
Percentage change = [(494 - 255) / 255] x 100
Subtract the new number by the original number
494 - 255 = 239
239 ÷ 255 = 0.9372549019607843
0.9372549019607843 x 100 = 93.73%