-2.68% is the change from 596 to 580
Calculation steps:
[( 580 - 596 ) ÷ 596] x 100 = -2.68%
Formula
Percentage change = [(580 - 596) / 596] x 100
Subtract the new number by the original number
580 - 596 = -16
-16 ÷ 596 = -0.026845637583892617
-0.026845637583892617 x 100 = -2.68%