4.05% is the change from 222 to 231
Calculation steps:
[( 231 - 222 ) ÷ 222] x 100 = 4.05%
Formula
Percentage change = [(231 - 222) / 222] x 100
Subtract the new number by the original number
231 - 222 = 9
9 ÷ 222 = 0.04054054054054054
0.04054054054054054 x 100 = 4.05%