-97.76% is the change from 891 to 20
Calculation steps:
[( 20 - 891 ) ÷ 891] x 100 = -97.76%
Formula
Percentage change = [(20 - 891) / 891] x 100
Subtract the new number by the original number
20 - 891 = -871
-871 ÷ 891 = -0.9775533108866442
-0.9775533108866442 x 100 = -97.76%