-8.9% is the change from 966 to 880
Calculation steps:
[( 880 - 966 ) ÷ 966] x 100 = -8.9%
Formula
Percentage change = [(880 - 966) / 966] x 100
Subtract the new number by the original number
880 - 966 = -86
-86 ÷ 966 = -0.08902691511387163
-0.08902691511387163 x 100 = -8.9%