-97.69% is the change from 822 to 19
Calculation steps:
[( 19 - 822 ) ÷ 822] x 100 = -97.69%
Formula
Percentage change = [(19 - 822) / 822] x 100
Subtract the new number by the original number
19 - 822 = -803
-803 ÷ 822 = -0.9768856447688564
-0.9768856447688564 x 100 = -97.69%