-6.59% is the change from 577 to 539
Calculation steps:
[( 539 - 577 ) ÷ 577] x 100 = -6.59%
Formula
Percentage change = [(539 - 577) / 577] x 100
Subtract the new number by the original number
539 - 577 = -38
-38 ÷ 577 = -0.0658578856152513
-0.0658578856152513 x 100 = -6.59%