-96.59% is the change from 822 to 28
Calculation steps:
[( 28 - 822 ) ÷ 822] x 100 = -96.59%
Formula
Percentage change = [(28 - 822) / 822] x 100
Subtract the new number by the original number
28 - 822 = -794
-794 ÷ 822 = -0.9659367396593674
-0.9659367396593674 x 100 = -96.59%