-17.56% is the change from 581 to 479
Calculation steps:
[( 479 - 581 ) ÷ 581] x 100 = -17.56%
Formula
Percentage change = [(479 - 581) / 581] x 100
Subtract the new number by the original number
479 - 581 = -102
-102 ÷ 581 = -0.17555938037865748
-0.17555938037865748 x 100 = -17.56%