3.52% is the change from 511 to 529
Calculation steps:
[( 529 - 511 ) ÷ 511] x 100 = 3.52%
Formula
Percentage change = [(529 - 511) / 511] x 100
Subtract the new number by the original number
529 - 511 = 18
18 ÷ 511 = 0.03522504892367906
0.03522504892367906 x 100 = 3.52%