-2.52% is the change from 596 to 581
Calculation steps:
[( 581 - 596 ) ÷ 596] x 100 = -2.52%
Formula
Percentage change = [(581 - 596) / 596] x 100
Subtract the new number by the original number
581 - 596 = -15
-15 ÷ 596 = -0.025167785234899327
-0.025167785234899327 x 100 = -2.52%