-35.4% is the change from 822 to 531
Calculation steps:
[( 531 - 822 ) ÷ 822] x 100 = -35.4%
Formula
Percentage change = [(531 - 822) / 822] x 100
Subtract the new number by the original number
531 - 822 = -291
-291 ÷ 822 = -0.354014598540146
-0.354014598540146 x 100 = -35.4%