-81.33% is the change from 873 to 163
Calculation steps:
[( 163 - 873 ) ÷ 873] x 100 = -81.33%
Formula
Percentage change = [(163 - 873) / 873] x 100
Subtract the new number by the original number
163 - 873 = -710
-710 ÷ 873 = -0.8132875143184422
-0.8132875143184422 x 100 = -81.33%