-89.09% is the change from 816 to 89
Calculation steps:
[( 89 - 816 ) ÷ 816] x 100 = -89.09%
Formula
Percentage change = [(89 - 816) / 816] x 100
Subtract the new number by the original number
89 - 816 = -727
-727 ÷ 816 = -0.8909313725490197
-0.8909313725490197 x 100 = -89.09%