-73.8% is the change from 313 to 82
Calculation steps:
[( 82 - 313 ) ÷ 313] x 100 = -73.8%
Formula
Percentage change = [(82 - 313) / 313] x 100
Subtract the new number by the original number
82 - 313 = -231
-231 ÷ 313 = -0.7380191693290735
-0.7380191693290735 x 100 = -73.8%