-18.02% is the change from 888 to 728
Calculation steps:
[( 728 - 888 ) ÷ 888] x 100 = -18.02%
Formula
Percentage change = [(728 - 888) / 888] x 100
Subtract the new number by the original number
728 - 888 = -160
-160 ÷ 888 = -0.18018018018018017
-0.18018018018018017 x 100 = -18.02%