18.03% is the change from 549 to 648
Calculation steps:
[( 648 - 549 ) ÷ 549] x 100 = 18.03%
Formula
Percentage change = [(648 - 549) / 549] x 100
Subtract the new number by the original number
648 - 549 = 99
99 ÷ 549 = 0.18032786885245902
0.18032786885245902 x 100 = 18.03%