-98.89% is the change from 814 to 9
Calculation steps:
[( 9 - 814 ) ÷ 814] x 100 = -98.89%
Formula
Percentage change = [(9 - 814) / 814] x 100
Subtract the new number by the original number
9 - 814 = -805
-805 ÷ 814 = -0.9889434889434889
-0.9889434889434889 x 100 = -98.89%