-8.56% is the change from 970 to 887
Calculation steps:
[( 887 - 970 ) ÷ 970] x 100 = -8.56%
Formula
Percentage change = [(887 - 970) / 970] x 100
Subtract the new number by the original number
887 - 970 = -83
-83 ÷ 970 = -0.08556701030927835
-0.08556701030927835 x 100 = -8.56%