-46.58% is the change from 599 to 320
Calculation steps:
[( 320 - 599 ) ÷ 599] x 100 = -46.58%
Formula
Percentage change = [(320 - 599) / 599] x 100
Subtract the new number by the original number
320 - 599 = -279
-279 ÷ 599 = -0.4657762938230384
-0.4657762938230384 x 100 = -46.58%