-22.5% is the change from 809 to 627
Calculation steps:
[( 627 - 809 ) ÷ 809] x 100 = -22.5%
Formula
Percentage change = [(627 - 809) / 809] x 100
Subtract the new number by the original number
627 - 809 = -182
-182 ÷ 809 = -0.2249690976514215
-0.2249690976514215 x 100 = -22.5%