-18.03% is the change from 599 to 491
Calculation steps:
[( 491 - 599 ) ÷ 599] x 100 = -18.03%
Formula
Percentage change = [(491 - 599) / 599] x 100
Subtract the new number by the original number
491 - 599 = -108
-108 ÷ 599 = -0.18030050083472454
-0.18030050083472454 x 100 = -18.03%