-91.7% is the change from 988 to 82
Calculation steps:
[( 82 - 988 ) ÷ 988] x 100 = -91.7%
Formula
Percentage change = [(82 - 988) / 988] x 100
Subtract the new number by the original number
82 - 988 = -906
-906 ÷ 988 = -0.917004048582996
-0.917004048582996 x 100 = -91.7%