-97.56% is the change from 862 to 21
Calculation steps:
[( 21 - 862 ) ÷ 862] x 100 = -97.56%
Formula
Percentage change = [(21 - 862) / 862] x 100
Subtract the new number by the original number
21 - 862 = -841
-841 ÷ 862 = -0.9756380510440835
-0.9756380510440835 x 100 = -97.56%