-36.74% is the change from 822 to 520
Calculation steps:
[( 520 - 822 ) ÷ 822] x 100 = -36.74%
Formula
Percentage change = [(520 - 822) / 822] x 100
Subtract the new number by the original number
520 - 822 = -302
-302 ÷ 822 = -0.36739659367396593
-0.36739659367396593 x 100 = -36.74%