-8.43% is the change from 878 to 804
Calculation steps:
[( 804 - 878 ) ÷ 878] x 100 = -8.43%
Formula
Percentage change = [(804 - 878) / 878] x 100
Subtract the new number by the original number
804 - 878 = -74
-74 ÷ 878 = -0.08428246013667426
-0.08428246013667426 x 100 = -8.43%