-89.22% is the change from 816 to 88
Calculation steps:
[( 88 - 816 ) ÷ 816] x 100 = -89.22%
Formula
Percentage change = [(88 - 816) / 816] x 100
Subtract the new number by the original number
88 - 816 = -728
-728 ÷ 816 = -0.8921568627450981
-0.8921568627450981 x 100 = -89.22%