92.19% is the change from 256 to 492
Calculation steps:
[( 492 - 256 ) ÷ 256] x 100 = 92.19%
Formula
Percentage change = [(492 - 256) / 256] x 100
Subtract the new number by the original number
492 - 256 = 236
236 ÷ 256 = 0.921875
0.921875 x 100 = 92.19%