11.69% is the change from 231 to 258
Calculation steps:
[( 258 - 231 ) ÷ 231] x 100 = 11.69%
Formula
Percentage change = [(258 - 231) / 231] x 100
Subtract the new number by the original number
258 - 231 = 27
27 ÷ 231 = 0.11688311688311688
0.11688311688311688 x 100 = 11.69%