20.71% is the change from 396 to 478
Calculation steps:
[( 478 - 396 ) ÷ 396] x 100 = 20.71%
Formula
Percentage change = [(478 - 396) / 396] x 100
Subtract the new number by the original number
478 - 396 = 82
82 ÷ 396 = 0.20707070707070707
0.20707070707070707 x 100 = 20.71%