72.66% is the change from 256 to 442
Calculation steps:
[( 442 - 256 ) ÷ 256] x 100 = 72.66%
Formula
Percentage change = [(442 - 256) / 256] x 100
Subtract the new number by the original number
442 - 256 = 186
186 ÷ 256 = 0.7265625
0.7265625 x 100 = 72.66%