-39.23% is the change from 673 to 409
Calculation steps:
[( 409 - 673 ) ÷ 673] x 100 = -39.23%
Formula
Percentage change = [(409 - 673) / 673] x 100
Subtract the new number by the original number
409 - 673 = -264
-264 ÷ 673 = -0.3922734026745914
-0.3922734026745914 x 100 = -39.23%