-87.96% is the change from 681 to 82
Calculation steps:
[( 82 - 681 ) ÷ 681] x 100 = -87.96%
Formula
Percentage change = [(82 - 681) / 681] x 100
Subtract the new number by the original number
82 - 681 = -599
-599 ÷ 681 = -0.8795888399412628
-0.8795888399412628 x 100 = -87.96%