22.51% is the change from 231 to 283
Calculation steps:
[( 283 - 231 ) ÷ 231] x 100 = 22.51%
Formula
Percentage change = [(283 - 231) / 231] x 100
Subtract the new number by the original number
283 - 231 = 52
52 ÷ 231 = 0.22510822510822512
0.22510822510822512 x 100 = 22.51%