20.42% is the change from 191 to 230
Calculation steps:
[( 230 - 191 ) ÷ 191] x 100 = 20.42%
Formula
Percentage change = [(230 - 191) / 191] x 100
Subtract the new number by the original number
230 - 191 = 39
39 ÷ 191 = 0.20418848167539266
0.20418848167539266 x 100 = 20.42%