-11.22% is the change from 989 to 878
Calculation steps:
[( 878 - 989 ) ÷ 989] x 100 = -11.22%
Formula
Percentage change = [(878 - 989) / 989] x 100
Subtract the new number by the original number
878 - 989 = -111
-111 ÷ 989 = -0.1122345803842265
-0.1122345803842265 x 100 = -11.22%