27.97% is the change from 429 to 549
Calculation steps:
[( 549 - 429 ) ÷ 429] x 100 = 27.97%
Formula
Percentage change = [(549 - 429) / 429] x 100
Subtract the new number by the original number
549 - 429 = 120
120 ÷ 429 = 0.27972027972027974
0.27972027972027974 x 100 = 27.97%