-16.93% is the change from 809 to 672
Calculation steps:
[( 672 - 809 ) ÷ 809] x 100 = -16.93%
Formula
Percentage change = [(672 - 809) / 809] x 100
Subtract the new number by the original number
672 - 809 = -137
-137 ÷ 809 = -0.16934487021013597
-0.16934487021013597 x 100 = -16.93%