28.57% is the change from 427 to 549
Calculation steps:
[( 549 - 427 ) ÷ 427] x 100 = 28.57%
Formula
Percentage change = [(549 - 427) / 427] x 100
Subtract the new number by the original number
549 - 427 = 122
122 ÷ 427 = 0.2857142857142857
0.2857142857142857 x 100 = 28.57%