-64.65% is the change from 809 to 286
Calculation steps:
[( 286 - 809 ) ÷ 809] x 100 = -64.65%
Formula
Percentage change = [(286 - 809) / 809] x 100
Subtract the new number by the original number
286 - 809 = -523
-523 ÷ 809 = -0.646477132262052
-0.646477132262052 x 100 = -64.65%