3.72% is the change from 538 to 558
Calculation steps:
[( 558 - 538 ) ÷ 538] x 100 = 3.72%
Formula
Percentage change = [(558 - 538) / 538] x 100
Subtract the new number by the original number
558 - 538 = 20
20 ÷ 538 = 0.03717472118959108
0.03717472118959108 x 100 = 3.72%