82.39% is the change from 352 to 642
Calculation steps:
[( 642 - 352 ) ÷ 352] x 100 = 82.39%
Formula
Percentage change = [(642 - 352) / 352] x 100
Subtract the new number by the original number
642 - 352 = 290
290 ÷ 352 = 0.8238636363636364
0.8238636363636364 x 100 = 82.39%