-39.67% is the change from 673 to 406
Calculation steps:
[( 406 - 673 ) ÷ 673] x 100 = -39.67%
Formula
Percentage change = [(406 - 673) / 673] x 100
Subtract the new number by the original number
406 - 673 = -267
-267 ÷ 673 = -0.3967310549777117
-0.3967310549777117 x 100 = -39.67%