-8.54% is the change from 960 to 878
Calculation steps:
[( 878 - 960 ) ÷ 960] x 100 = -8.54%
Formula
Percentage change = [(878 - 960) / 960] x 100
Subtract the new number by the original number
878 - 960 = -82
-82 ÷ 960 = -0.08541666666666667
-0.08541666666666667 x 100 = -8.54%