-99.88% is the change from 822 to 1
Calculation steps:
[( 1 - 822 ) ÷ 822] x 100 = -99.88%
Formula
Percentage change = [(1 - 822) / 822] x 100
Subtract the new number by the original number
1 - 822 = -821
-821 ÷ 822 = -0.9987834549878345
-0.9987834549878345 x 100 = -99.88%