94.14% is the change from 256 to 497
Calculation steps:
[( 497 - 256 ) ÷ 256] x 100 = 94.14%
Formula
Percentage change = [(497 - 256) / 256] x 100
Subtract the new number by the original number
497 - 256 = 241
241 ÷ 256 = 0.94140625
0.94140625 x 100 = 94.14%