-96.64% is the change from 923 to 31
Calculation steps:
[( 31 - 923 ) ÷ 923] x 100 = -96.64%
Formula
Percentage change = [(31 - 923) / 923] x 100
Subtract the new number by the original number
31 - 923 = -892
-892 ÷ 923 = -0.9664138678223185
-0.9664138678223185 x 100 = -96.64%