-97.86% is the change from 982 to 21
Calculation steps:
[( 21 - 982 ) ÷ 982] x 100 = -97.86%
Formula
Percentage change = [(21 - 982) / 982] x 100
Subtract the new number by the original number
21 - 982 = -961
-961 ÷ 982 = -0.9786150712830958
-0.9786150712830958 x 100 = -97.86%