-86.4% is the change from 603 to 82
Calculation steps:
[( 82 - 603 ) ÷ 603] x 100 = -86.4%
Formula
Percentage change = [(82 - 603) / 603] x 100
Subtract the new number by the original number
82 - 603 = -521
-521 ÷ 603 = -0.8640132669983416
-0.8640132669983416 x 100 = -86.4%