6.04% is the change from 480 to 509
Calculation steps:
[( 509 - 480 ) ÷ 480] x 100 = 6.04%
Formula
Percentage change = [(509 - 480) / 480] x 100
Subtract the new number by the original number
509 - 480 = 29
29 ÷ 480 = 0.06041666666666667
0.06041666666666667 x 100 = 6.04%