-18.81% is the change from 888 to 721
Calculation steps:
[( 721 - 888 ) ÷ 888] x 100 = -18.81%
Formula
Percentage change = [(721 - 888) / 888] x 100
Subtract the new number by the original number
721 - 888 = -167
-167 ÷ 888 = -0.18806306306306306
-0.18806306306306306 x 100 = -18.81%