-15.42% is the change from 577 to 488
Calculation steps:
[( 488 - 577 ) ÷ 577] x 100 = -15.42%
Formula
Percentage change = [(488 - 577) / 577] x 100
Subtract the new number by the original number
488 - 577 = -89
-89 ÷ 577 = -0.15424610051993068
-0.15424610051993068 x 100 = -15.42%