-15.25% is the change from 577 to 489
Calculation steps:
[( 489 - 577 ) ÷ 577] x 100 = -15.25%
Formula
Percentage change = [(489 - 577) / 577] x 100
Subtract the new number by the original number
489 - 577 = -88
-88 ÷ 577 = -0.15251299826689774
-0.15251299826689774 x 100 = -15.25%