-90.52% is the change from 812 to 77
Calculation steps:
[( 77 - 812 ) ÷ 812] x 100 = -90.52%
Formula
Percentage change = [(77 - 812) / 812] x 100
Subtract the new number by the original number
77 - 812 = -735
-735 ÷ 812 = -0.9051724137931034
-0.9051724137931034 x 100 = -90.52%