59.38% is the change from 256 to 408
Calculation steps:
[( 408 - 256 ) ÷ 256] x 100 = 59.38%
Formula
Percentage change = [(408 - 256) / 256] x 100
Subtract the new number by the original number
408 - 256 = 152
152 ÷ 256 = 0.59375
0.59375 x 100 = 59.38%