54.71% is the change from 329 to 509
Calculation steps:
[( 509 - 329 ) ÷ 329] x 100 = 54.71%
Formula
Percentage change = [(509 - 329) / 329] x 100
Subtract the new number by the original number
509 - 329 = 180
180 ÷ 329 = 0.547112462006079
0.547112462006079 x 100 = 54.71%