-30.78% is the change from 809 to 560
Calculation steps:
[( 560 - 809 ) ÷ 809] x 100 = -30.78%
Formula
Percentage change = [(560 - 809) / 809] x 100
Subtract the new number by the original number
560 - 809 = -249
-249 ÷ 809 = -0.30778739184178
-0.30778739184178 x 100 = -30.78%