27.38% is the change from 431 to 549
Calculation steps:
[( 549 - 431 ) ÷ 431] x 100 = 27.38%
Formula
Percentage change = [(549 - 431) / 431] x 100
Subtract the new number by the original number
549 - 431 = 118
118 ÷ 431 = 0.2737819025522042
0.2737819025522042 x 100 = 27.38%