-97.64% is the change from 889 to 21
Calculation steps:
[( 21 - 889 ) ÷ 889] x 100 = -97.64%
Formula
Percentage change = [(21 - 889) / 889] x 100
Subtract the new number by the original number
21 - 889 = -868
-868 ÷ 889 = -0.9763779527559056
-0.9763779527559056 x 100 = -97.64%