-97.95% is the change from 585 to 12
Calculation steps:
[( 12 - 585 ) ÷ 585] x 100 = -97.95%
Formula
Percentage change = [(12 - 585) / 585] x 100
Subtract the new number by the original number
12 - 585 = -573
-573 ÷ 585 = -0.9794871794871794
-0.9794871794871794 x 100 = -97.95%