-81.68% is the change from 464 to 85
Calculation steps:
[( 85 - 464 ) ÷ 464] x 100 = -81.68%
Formula
Percentage change = [(85 - 464) / 464] x 100
Subtract the new number by the original number
85 - 464 = -379
-379 ÷ 464 = -0.8168103448275862
-0.8168103448275862 x 100 = -81.68%