12.97% is the change from 509 to 575
Calculation steps:
[( 575 - 509 ) ÷ 509] x 100 = 12.97%
Formula
Percentage change = [(575 - 509) / 509] x 100
Subtract the new number by the original number
575 - 509 = 66
66 ÷ 509 = 0.12966601178781925
0.12966601178781925 x 100 = 12.97%