81.64% is the change from 256 to 465
Calculation steps:
[( 465 - 256 ) ÷ 256] x 100 = 81.64%
Formula
Percentage change = [(465 - 256) / 256] x 100
Subtract the new number by the original number
465 - 256 = 209
209 ÷ 256 = 0.81640625
0.81640625 x 100 = 81.64%