-87.87% is the change from 676 to 82
Calculation steps:
[( 82 - 676 ) ÷ 676] x 100 = -87.87%
Formula
Percentage change = [(82 - 676) / 676] x 100
Subtract the new number by the original number
82 - 676 = -594
-594 ÷ 676 = -0.878698224852071
-0.878698224852071 x 100 = -87.87%