-96.34% is the change from 846 to 31
Calculation steps:
[( 31 - 846 ) ÷ 846] x 100 = -96.34%
Formula
Percentage change = [(31 - 846) / 846] x 100
Subtract the new number by the original number
31 - 846 = -815
-815 ÷ 846 = -0.9633569739952719
-0.9633569739952719 x 100 = -96.34%