-27.17% is the change from 887 to 646
Calculation steps:
[( 646 - 887 ) ÷ 887] x 100 = -27.17%
Formula
Percentage change = [(646 - 887) / 887] x 100
Subtract the new number by the original number
646 - 887 = -241
-241 ÷ 887 = -0.2717023675310034
-0.2717023675310034 x 100 = -27.17%