83.86% is the change from 446 to 820
Calculation steps:
[( 820 - 446 ) ÷ 446] x 100 = 83.86%
Formula
Percentage change = [(820 - 446) / 446] x 100
Subtract the new number by the original number
820 - 446 = 374
374 ÷ 446 = 0.8385650224215246
0.8385650224215246 x 100 = 83.86%