6.57% is the change from 396 to 422
Calculation steps:
[( 422 - 396 ) ÷ 396] x 100 = 6.57%
Formula
Percentage change = [(422 - 396) / 396] x 100
Subtract the new number by the original number
422 - 396 = 26
26 ÷ 396 = 0.06565656565656566
0.06565656565656566 x 100 = 6.57%