-97.53% is the change from 485 to 12
Calculation steps:
[( 12 - 485 ) ÷ 485] x 100 = -97.53%
Formula
Percentage change = [(12 - 485) / 485] x 100
Subtract the new number by the original number
12 - 485 = -473
-473 ÷ 485 = -0.9752577319587629
-0.9752577319587629 x 100 = -97.53%