-24.81% is the change from 673 to 506
Calculation steps:
[( 506 - 673 ) ÷ 673] x 100 = -24.81%
Formula
Percentage change = [(506 - 673) / 673] x 100
Subtract the new number by the original number
506 - 673 = -167
-167 ÷ 673 = -0.24814264487369986
-0.24814264487369986 x 100 = -24.81%