-16.69% is the change from 599 to 499
Calculation steps:
[( 499 - 599 ) ÷ 599] x 100 = -16.69%
Formula
Percentage change = [(499 - 599) / 599] x 100
Subtract the new number by the original number
499 - 599 = -100
-100 ÷ 599 = -0.1669449081803005
-0.1669449081803005 x 100 = -16.69%