13.16% is the change from 228 to 258
Calculation steps:
[( 258 - 228 ) ÷ 228] x 100 = 13.16%
Formula
Percentage change = [(258 - 228) / 228] x 100
Subtract the new number by the original number
258 - 228 = 30
30 ÷ 228 = 0.13157894736842105
0.13157894736842105 x 100 = 13.16%