-64.77% is the change from 809 to 285
Calculation steps:
[( 285 - 809 ) ÷ 809] x 100 = -64.77%
Formula
Percentage change = [(285 - 809) / 809] x 100
Subtract the new number by the original number
285 - 809 = -524
-524 ÷ 809 = -0.6477132262051916
-0.6477132262051916 x 100 = -64.77%