-15.55% is the change from 566 to 478
Calculation steps:
[( 478 - 566 ) ÷ 566] x 100 = -15.55%
Formula
Percentage change = [(478 - 566) / 566] x 100
Subtract the new number by the original number
478 - 566 = -88
-88 ÷ 566 = -0.15547703180212014
-0.15547703180212014 x 100 = -15.55%