-72.81% is the change from 809 to 220
Calculation steps:
[( 220 - 809 ) ÷ 809] x 100 = -72.81%
Formula
Percentage change = [(220 - 809) / 809] x 100
Subtract the new number by the original number
220 - 809 = -589
-589 ÷ 809 = -0.7280593325092707
-0.7280593325092707 x 100 = -72.81%