14.73% is the change from 509 to 584
Calculation steps:
[( 584 - 509 ) ÷ 509] x 100 = 14.73%
Formula
Percentage change = [(584 - 509) / 509] x 100
Subtract the new number by the original number
584 - 509 = 75
75 ÷ 509 = 0.14734774066797643
0.14734774066797643 x 100 = 14.73%