-99.89% is the change from 873 to 1
Calculation steps:
[( 1 - 873 ) ÷ 873] x 100 = -99.89%
Formula
Percentage change = [(1 - 873) / 873] x 100
Subtract the new number by the original number
1 - 873 = -872
-872 ÷ 873 = -0.9988545246277205
-0.9988545246277205 x 100 = -99.89%