-12.74% is the change from 581 to 507
Calculation steps:
[( 507 - 581 ) ÷ 581] x 100 = -12.74%
Formula
Percentage change = [(507 - 581) / 581] x 100
Subtract the new number by the original number
507 - 581 = -74
-74 ÷ 581 = -0.12736660929432014
-0.12736660929432014 x 100 = -12.74%