-73.3% is the change from 809 to 216
Calculation steps:
[( 216 - 809 ) ÷ 809] x 100 = -73.3%
Formula
Percentage change = [(216 - 809) / 809] x 100
Subtract the new number by the original number
216 - 809 = -593
-593 ÷ 809 = -0.7330037082818294
-0.7330037082818294 x 100 = -73.3%