-89.12% is the change from 809 to 88
Calculation steps:
[( 88 - 809 ) ÷ 809] x 100 = -89.12%
Formula
Percentage change = [(88 - 809) / 809] x 100
Subtract the new number by the original number
88 - 809 = -721
-721 ÷ 809 = -0.8912237330037083
-0.8912237330037083 x 100 = -89.12%