-90.31% is the change from 826 to 80
Calculation steps:
[( 80 - 826 ) ÷ 826] x 100 = -90.31%
Formula
Percentage change = [(80 - 826) / 826] x 100
Subtract the new number by the original number
80 - 826 = -746
-746 ÷ 826 = -0.9031476997578692
-0.9031476997578692 x 100 = -90.31%