-22.91% is the change from 873 to 673
Calculation steps:
[( 673 - 873 ) ÷ 873] x 100 = -22.91%
Formula
Percentage change = [(673 - 873) / 873] x 100
Subtract the new number by the original number
673 - 873 = -200
-200 ÷ 873 = -0.2290950744558992
-0.2290950744558992 x 100 = -22.91%