81.25% is the change from 256 to 464
Calculation steps:
[( 464 - 256 ) ÷ 256] x 100 = 81.25%
Formula
Percentage change = [(464 - 256) / 256] x 100
Subtract the new number by the original number
464 - 256 = 208
208 ÷ 256 = 0.8125
0.8125 x 100 = 81.25%