-3.32% is the change from 603 to 583
Calculation steps:
[( 583 - 603 ) ÷ 603] x 100 = -3.32%
Formula
Percentage change = [(583 - 603) / 603] x 100
Subtract the new number by the original number
583 - 603 = -20
-20 ÷ 603 = -0.03316749585406302
-0.03316749585406302 x 100 = -3.32%