-10.88% is the change from 809 to 721
Calculation steps:
[( 721 - 809 ) ÷ 809] x 100 = -10.88%
Formula
Percentage change = [(721 - 809) / 809] x 100
Subtract the new number by the original number
721 - 809 = -88
-88 ÷ 809 = -0.10877626699629171
-0.10877626699629171 x 100 = -10.88%