-80.22% is the change from 809 to 160
Calculation steps:
[( 160 - 809 ) ÷ 809] x 100 = -80.22%
Formula
Percentage change = [(160 - 809) / 809] x 100
Subtract the new number by the original number
160 - 809 = -649
-649 ÷ 809 = -0.8022249690976514
-0.8022249690976514 x 100 = -80.22%