-8.66% is the change from 878 to 802
Calculation steps:
[( 802 - 878 ) ÷ 878] x 100 = -8.66%
Formula
Percentage change = [(802 - 878) / 878] x 100
Subtract the new number by the original number
802 - 878 = -76
-76 ÷ 878 = -0.08656036446469248
-0.08656036446469248 x 100 = -8.66%