-98.88% is the change from 804 to 9
Calculation steps:
[( 9 - 804 ) ÷ 804] x 100 = -98.88%
Formula
Percentage change = [(9 - 804) / 804] x 100
Subtract the new number by the original number
9 - 804 = -795
-795 ÷ 804 = -0.9888059701492538
-0.9888059701492538 x 100 = -98.88%