-88.1% is the change from 689 to 82
Calculation steps:
[( 82 - 689 ) ÷ 689] x 100 = -88.1%
Formula
Percentage change = [(82 - 689) / 689] x 100
Subtract the new number by the original number
82 - 689 = -607
-607 ÷ 689 = -0.8809869375907112
-0.8809869375907112 x 100 = -88.1%