-89.84% is the change from 807 to 82
Calculation steps:
[( 82 - 807 ) ÷ 807] x 100 = -89.84%
Formula
Percentage change = [(82 - 807) / 807] x 100
Subtract the new number by the original number
82 - 807 = -725
-725 ÷ 807 = -0.8983890954151177
-0.8983890954151177 x 100 = -89.84%