-8.79% is the change from 887 to 809
Calculation steps:
[( 809 - 887 ) ÷ 887] x 100 = -8.79%
Formula
Percentage change = [(809 - 887) / 887] x 100
Subtract the new number by the original number
809 - 887 = -78
-78 ÷ 887 = -0.08793686583990981
-0.08793686583990981 x 100 = -8.79%