-64.52% is the change from 809 to 287
Calculation steps:
[( 287 - 809 ) ÷ 809] x 100 = -64.52%
Formula
Percentage change = [(287 - 809) / 809] x 100
Subtract the new number by the original number
287 - 809 = -522
-522 ÷ 809 = -0.6452410383189122
-0.6452410383189122 x 100 = -64.52%