-2.6% is the change from 576 to 561
Calculation steps:
[( 561 - 576 ) ÷ 576] x 100 = -2.6%
Formula
Percentage change = [(561 - 576) / 576] x 100
Subtract the new number by the original number
561 - 576 = -15
-15 ÷ 576 = -0.026041666666666668
-0.026041666666666668 x 100 = -2.6%