-74.4% is the change from 871 to 223
Calculation steps:
[( 223 - 871 ) ÷ 871] x 100 = -74.4%
Formula
Percentage change = [(223 - 871) / 871] x 100
Subtract the new number by the original number
223 - 871 = -648
-648 ÷ 871 = -0.7439724454649828
-0.7439724454649828 x 100 = -74.4%