3.06% is the change from 556 to 573
Calculation steps:
[( 573 - 556 ) ÷ 556] x 100 = 3.06%
Formula
Percentage change = [(573 - 556) / 556] x 100
Subtract the new number by the original number
573 - 556 = 17
17 ÷ 556 = 0.030575539568345324
0.030575539568345324 x 100 = 3.06%