-96.15% is the change from 805 to 31
Calculation steps:
[( 31 - 805 ) ÷ 805] x 100 = -96.15%
Formula
Percentage change = [(31 - 805) / 805] x 100
Subtract the new number by the original number
31 - 805 = -774
-774 ÷ 805 = -0.9614906832298137
-0.9614906832298137 x 100 = -96.15%