-95.19% is the change from 873 to 42
Calculation steps:
[( 42 - 873 ) ÷ 873] x 100 = -95.19%
Formula
Percentage change = [(42 - 873) / 873] x 100
Subtract the new number by the original number
42 - 873 = -831
-831 ÷ 873 = -0.9518900343642611
-0.9518900343642611 x 100 = -95.19%