-98.99% is the change from 890 to 9
Calculation steps:
[( 9 - 890 ) ÷ 890] x 100 = -98.99%
Formula
Percentage change = [(9 - 890) / 890] x 100
Subtract the new number by the original number
9 - 890 = -881
-881 ÷ 890 = -0.9898876404494382
-0.9898876404494382 x 100 = -98.99%