-10.33% is the change from 668 to 599
Calculation steps:
[( 599 - 668 ) ÷ 668] x 100 = -10.33%
Formula
Percentage change = [(599 - 668) / 668] x 100
Subtract the new number by the original number
599 - 668 = -69
-69 ÷ 668 = -0.10329341317365269
-0.10329341317365269 x 100 = -10.33%