13.48% is the change from 230 to 261
Calculation steps:
[( 261 - 230 ) ÷ 230] x 100 = 13.48%
Formula
Percentage change = [(261 - 230) / 230] x 100
Subtract the new number by the original number
261 - 230 = 31
31 ÷ 230 = 0.13478260869565217
0.13478260869565217 x 100 = 13.48%