8.65% is the change from 555 to 603
Calculation steps:
[( 603 - 555 ) ÷ 555] x 100 = 8.65%
Formula
Percentage change = [(603 - 555) / 555] x 100
Subtract the new number by the original number
603 - 555 = 48
48 ÷ 555 = 0.08648648648648649
0.08648648648648649 x 100 = 8.65%