13.27% is the change from 226 to 256
Calculation steps:
[( 256 - 226 ) ÷ 226] x 100 = 13.27%
Formula
Percentage change = [(256 - 226) / 226] x 100
Subtract the new number by the original number
256 - 226 = 30
30 ÷ 226 = 0.13274336283185842
0.13274336283185842 x 100 = 13.27%