3.16% is the change from 538 to 555
Calculation steps:
[( 555 - 538 ) ÷ 538] x 100 = 3.16%
Formula
Percentage change = [(555 - 538) / 538] x 100
Subtract the new number by the original number
555 - 538 = 17
17 ÷ 538 = 0.031598513011152414
0.031598513011152414 x 100 = 3.16%