-23.48% is the change from 873 to 668
Calculation steps:
[( 668 - 873 ) ÷ 873] x 100 = -23.48%
Formula
Percentage change = [(668 - 873) / 873] x 100
Subtract the new number by the original number
668 - 873 = -205
-205 ÷ 873 = -0.23482245131729668
-0.23482245131729668 x 100 = -23.48%