-99.66% is the change from 873 to 3
Calculation steps:
[( 3 - 873 ) ÷ 873] x 100 = -99.66%
Formula
Percentage change = [(3 - 873) / 873] x 100
Subtract the new number by the original number
3 - 873 = -870
-870 ÷ 873 = -0.9965635738831615
-0.9965635738831615 x 100 = -99.66%