62.12% is the change from 396 to 642
Calculation steps:
[( 642 - 396 ) ÷ 396] x 100 = 62.12%
Formula
Percentage change = [(642 - 396) / 396] x 100
Subtract the new number by the original number
642 - 396 = 246
246 ÷ 396 = 0.6212121212121212
0.6212121212121212 x 100 = 62.12%