-4.6% is the change from 609 to 581
Calculation steps:
[( 581 - 609 ) ÷ 609] x 100 = -4.6%
Formula
Percentage change = [(581 - 609) / 609] x 100
Subtract the new number by the original number
581 - 609 = -28
-28 ÷ 609 = -0.04597701149425287
-0.04597701149425287 x 100 = -4.6%