-93.62% is the change from 486 to 31
Calculation steps:
[( 31 - 486 ) ÷ 486] x 100 = -93.62%
Formula
Percentage change = [(31 - 486) / 486] x 100
Subtract the new number by the original number
31 - 486 = -455
-455 ÷ 486 = -0.9362139917695473
-0.9362139917695473 x 100 = -93.62%