-15.24% is the change from 656 to 556
Calculation steps:
[( 556 - 656 ) ÷ 656] x 100 = -15.24%
Formula
Percentage change = [(556 - 656) / 656] x 100
Subtract the new number by the original number
556 - 656 = -100
-100 ÷ 656 = -0.1524390243902439
-0.1524390243902439 x 100 = -15.24%