3.78% is the change from 529 to 549
Calculation steps:
[( 549 - 529 ) ÷ 529] x 100 = 3.78%
Formula
Percentage change = [(549 - 529) / 529] x 100
Subtract the new number by the original number
549 - 529 = 20
20 ÷ 529 = 0.03780718336483932
0.03780718336483932 x 100 = 3.78%