11.48% is the change from 549 to 612
Calculation steps:
[( 612 - 549 ) ÷ 549] x 100 = 11.48%
Formula
Percentage change = [(612 - 549) / 549] x 100
Subtract the new number by the original number
612 - 549 = 63
63 ÷ 549 = 0.11475409836065574
0.11475409836065574 x 100 = 11.48%