-92.81% is the change from 431 to 31
Calculation steps:
[( 31 - 431 ) ÷ 431] x 100 = -92.81%
Formula
Percentage change = [(31 - 431) / 431] x 100
Subtract the new number by the original number
31 - 431 = -400
-400 ÷ 431 = -0.9280742459396751
-0.9280742459396751 x 100 = -92.81%