-83.13% is the change from 486 to 82
Calculation steps:
[( 82 - 486 ) ÷ 486] x 100 = -83.13%
Formula
Percentage change = [(82 - 486) / 486] x 100
Subtract the new number by the original number
82 - 486 = -404
-404 ÷ 486 = -0.831275720164609
-0.831275720164609 x 100 = -83.13%