-98.93% is the change from 844 to 9
Calculation steps:
[( 9 - 844 ) ÷ 844] x 100 = -98.93%
Formula
Percentage change = [(9 - 844) / 844] x 100
Subtract the new number by the original number
9 - 844 = -835
-835 ÷ 844 = -0.9893364928909952
-0.9893364928909952 x 100 = -98.93%