-96.19% is the change from 814 to 31
Calculation steps:
[( 31 - 814 ) ÷ 814] x 100 = -96.19%
Formula
Percentage change = [(31 - 814) / 814] x 100
Subtract the new number by the original number
31 - 814 = -783
-783 ÷ 814 = -0.961916461916462
-0.961916461916462 x 100 = -96.19%