-69.22% is the change from 809 to 249
Calculation steps:
[( 249 - 809 ) ÷ 809] x 100 = -69.22%
Formula
Percentage change = [(249 - 809) / 809] x 100
Subtract the new number by the original number
249 - 809 = -560
-560 ÷ 809 = -0.69221260815822
-0.69221260815822 x 100 = -69.22%