78.91% is the change from 256 to 458
Calculation steps:
[( 458 - 256 ) ÷ 256] x 100 = 78.91%
Formula
Percentage change = [(458 - 256) / 256] x 100
Subtract the new number by the original number
458 - 256 = 202
202 ÷ 256 = 0.7890625
0.7890625 x 100 = 78.91%