-6.71% is the change from 596 to 556
Calculation steps:
[( 556 - 596 ) ÷ 596] x 100 = -6.71%
Formula
Percentage change = [(556 - 596) / 596] x 100
Subtract the new number by the original number
556 - 596 = -40
-40 ÷ 596 = -0.06711409395973154
-0.06711409395973154 x 100 = -6.71%