-88.02% is the change from 676 to 81
Calculation steps:
[( 81 - 676 ) ÷ 676] x 100 = -88.02%
Formula
Percentage change = [(81 - 676) / 676] x 100
Subtract the new number by the original number
81 - 676 = -595
-595 ÷ 676 = -0.8801775147928994
-0.8801775147928994 x 100 = -88.02%