85.52% is the change from 442 to 820
Calculation steps:
[( 820 - 442 ) ÷ 442] x 100 = 85.52%
Formula
Percentage change = [(820 - 442) / 442] x 100
Subtract the new number by the original number
820 - 442 = 378
378 ÷ 442 = 0.8552036199095022
0.8552036199095022 x 100 = 85.52%