73.33% is the change from 255 to 442
Calculation steps:
[( 442 - 255 ) ÷ 255] x 100 = 73.33%
Formula
Percentage change = [(442 - 255) / 255] x 100
Subtract the new number by the original number
442 - 255 = 187
187 ÷ 255 = 0.7333333333333333
0.7333333333333333 x 100 = 73.33%