-31.4% is the change from 809 to 555
Calculation steps:
[( 555 - 809 ) ÷ 809] x 100 = -31.4%
Formula
Percentage change = [(555 - 809) / 809] x 100
Subtract the new number by the original number
555 - 809 = -254
-254 ÷ 809 = -0.31396786155747836
-0.31396786155747836 x 100 = -31.4%