-2.34% is the change from 556 to 543
Calculation steps:
[( 543 - 556 ) ÷ 556] x 100 = -2.34%
Formula
Percentage change = [(543 - 556) / 556] x 100
Subtract the new number by the original number
543 - 556 = -13
-13 ÷ 556 = -0.023381294964028777
-0.023381294964028777 x 100 = -2.34%