-98.94% is the change from 853 to 9
Calculation steps:
[( 9 - 853 ) ÷ 853] x 100 = -98.94%
Formula
Percentage change = [(9 - 853) / 853] x 100
Subtract the new number by the original number
9 - 853 = -844
-844 ÷ 853 = -0.9894490035169988
-0.9894490035169988 x 100 = -98.94%