17.26% is the change from 197 to 231
Calculation steps:
[( 231 - 197 ) ÷ 197] x 100 = 17.26%
Formula
Percentage change = [(231 - 197) / 197] x 100
Subtract the new number by the original number
231 - 197 = 34
34 ÷ 197 = 0.17258883248730963
0.17258883248730963 x 100 = 17.26%