-7.69% is the change from 871 to 804
Calculation steps:
[( 804 - 871 ) ÷ 871] x 100 = -7.69%
Formula
Percentage change = [(804 - 871) / 871] x 100
Subtract the new number by the original number
804 - 871 = -67
-67 ÷ 871 = -0.07692307692307693
-0.07692307692307693 x 100 = -7.69%