-85.81% is the change from 599 to 85
Calculation steps:
[( 85 - 599 ) ÷ 599] x 100 = -85.81%
Formula
Percentage change = [(85 - 599) / 599] x 100
Subtract the new number by the original number
85 - 599 = -514
-514 ÷ 599 = -0.8580968280467446
-0.8580968280467446 x 100 = -85.81%