-92.69% is the change from 424 to 31
Calculation steps:
[( 31 - 424 ) ÷ 424] x 100 = -92.69%
Formula
Percentage change = [(31 - 424) / 424] x 100
Subtract the new number by the original number
31 - 424 = -393
-393 ÷ 424 = -0.9268867924528302
-0.9268867924528302 x 100 = -92.69%