-22.02% is the change from 822 to 641
Calculation steps:
[( 641 - 822 ) ÷ 822] x 100 = -22.02%
Formula
Percentage change = [(641 - 822) / 822] x 100
Subtract the new number by the original number
641 - 822 = -181
-181 ÷ 822 = -0.22019464720194648
-0.22019464720194648 x 100 = -22.02%