-0.37% is the change from 809 to 806
Calculation steps:
[( 806 - 809 ) ÷ 809] x 100 = -0.37%
Formula
Percentage change = [(806 - 809) / 809] x 100
Subtract the new number by the original number
806 - 809 = -3
-3 ÷ 809 = -0.003708281829419036
-0.003708281829419036 x 100 = -0.37%