-17.81% is the change from 556 to 457
Calculation steps:
[( 457 - 556 ) ÷ 556] x 100 = -17.81%
Formula
Percentage change = [(457 - 556) / 556] x 100
Subtract the new number by the original number
457 - 556 = -99
-99 ÷ 556 = -0.17805755395683454
-0.17805755395683454 x 100 = -17.81%