-3.12% is the change from 609 to 590
Calculation steps:
[( 590 - 609 ) ÷ 609] x 100 = -3.12%
Formula
Percentage change = [(590 - 609) / 609] x 100
Subtract the new number by the original number
590 - 609 = -19
-19 ÷ 609 = -0.031198686371100164
-0.031198686371100164 x 100 = -3.12%