9.55% is the change from 555 to 608
Calculation steps:
[( 608 - 555 ) ÷ 555] x 100 = 9.55%
Formula
Percentage change = [(608 - 555) / 555] x 100
Subtract the new number by the original number
608 - 555 = 53
53 ÷ 555 = 0.09549549549549549
0.09549549549549549 x 100 = 9.55%