-87.83% is the change from 674 to 82
Calculation steps:
[( 82 - 674 ) ÷ 674] x 100 = -87.83%
Formula
Percentage change = [(82 - 674) / 674] x 100
Subtract the new number by the original number
82 - 674 = -592
-592 ÷ 674 = -0.8783382789317508
-0.8783382789317508 x 100 = -87.83%