-18.71% is the change from 887 to 721
Calculation steps:
[( 721 - 887 ) ÷ 887] x 100 = -18.71%
Formula
Percentage change = [(721 - 887) / 887] x 100
Subtract the new number by the original number
721 - 887 = -166
-166 ÷ 887 = -0.1871476888387824
-0.1871476888387824 x 100 = -18.71%