7.21% is the change from 222 to 238
Calculation steps:
[( 238 - 222 ) ÷ 222] x 100 = 7.21%
Formula
Percentage change = [(238 - 222) / 222] x 100
Subtract the new number by the original number
238 - 222 = 16
16 ÷ 222 = 0.07207207207207207
0.07207207207207207 x 100 = 7.21%