-97.81% is the change from 822 to 18
Calculation steps:
[( 18 - 822 ) ÷ 822] x 100 = -97.81%
Formula
Percentage change = [(18 - 822) / 822] x 100
Subtract the new number by the original number
18 - 822 = -804
-804 ÷ 822 = -0.9781021897810219
-0.9781021897810219 x 100 = -97.81%