-17.9% is the change from 581 to 477
Calculation steps:
[( 477 - 581 ) ÷ 581] x 100 = -17.9%
Formula
Percentage change = [(477 - 581) / 581] x 100
Subtract the new number by the original number
477 - 581 = -104
-104 ÷ 581 = -0.17900172117039587
-0.17900172117039587 x 100 = -17.9%