7.38% is the change from 393 to 422
Calculation steps:
[( 422 - 393 ) ÷ 393] x 100 = 7.38%
Formula
Percentage change = [(422 - 393) / 393] x 100
Subtract the new number by the original number
422 - 393 = 29
29 ÷ 393 = 0.0737913486005089
0.0737913486005089 x 100 = 7.38%