21.58% is the change from 190 to 231
Calculation steps:
[( 231 - 190 ) ÷ 190] x 100 = 21.58%
Formula
Percentage change = [(231 - 190) / 190] x 100
Subtract the new number by the original number
231 - 190 = 41
41 ÷ 190 = 0.21578947368421053
0.21578947368421053 x 100 = 21.58%