-90.45% is the change from 806 to 77
Calculation steps:
[( 77 - 806 ) ÷ 806] x 100 = -90.45%
Formula
Percentage change = [(77 - 806) / 806] x 100
Subtract the new number by the original number
77 - 806 = -729
-729 ÷ 806 = -0.9044665012406948
-0.9044665012406948 x 100 = -90.45%