13.95% is the change from 509 to 580
Calculation steps:
[( 580 - 509 ) ÷ 509] x 100 = 13.95%
Formula
Percentage change = [(580 - 509) / 509] x 100
Subtract the new number by the original number
580 - 509 = 71
71 ÷ 509 = 0.13948919449901767
0.13948919449901767 x 100 = 13.95%