30.08% is the change from 256 to 333
Calculation steps:
[( 333 - 256 ) ÷ 256] x 100 = 30.08%
Formula
Percentage change = [(333 - 256) / 256] x 100
Subtract the new number by the original number
333 - 256 = 77
77 ÷ 256 = 0.30078125
0.30078125 x 100 = 30.08%