16.4% is the change from 439 to 511
Calculation steps:
[( 511 - 439 ) ÷ 439] x 100 = 16.4%
Formula
Percentage change = [(511 - 439) / 439] x 100
Subtract the new number by the original number
511 - 439 = 72
72 ÷ 439 = 0.16400911161731208
0.16400911161731208 x 100 = 16.4%