95.7% is the change from 256 to 501
Calculation steps:
[( 501 - 256 ) ÷ 256] x 100 = 95.7%
Formula
Percentage change = [(501 - 256) / 256] x 100
Subtract the new number by the original number
501 - 256 = 245
245 ÷ 256 = 0.95703125
0.95703125 x 100 = 95.7%