-17.33% is the change from 577 to 477
Calculation steps:
[( 477 - 577 ) ÷ 577] x 100 = -17.33%
Formula
Percentage change = [(477 - 577) / 577] x 100
Subtract the new number by the original number
477 - 577 = -100
-100 ÷ 577 = -0.1733102253032929
-0.1733102253032929 x 100 = -17.33%