-91.62% is the change from 979 to 82
Calculation steps:
[( 82 - 979 ) ÷ 979] x 100 = -91.62%
Formula
Percentage change = [(82 - 979) / 979] x 100
Subtract the new number by the original number
82 - 979 = -897
-897 ÷ 979 = -0.916241062308478
-0.916241062308478 x 100 = -91.62%