-85.22% is the change from 873 to 129
Calculation steps:
[( 129 - 873 ) ÷ 873] x 100 = -85.22%
Formula
Percentage change = [(129 - 873) / 873] x 100
Subtract the new number by the original number
129 - 873 = -744
-744 ÷ 873 = -0.852233676975945
-0.852233676975945 x 100 = -85.22%