14.15% is the change from 509 to 581
Calculation steps:
[( 581 - 509 ) ÷ 509] x 100 = 14.15%
Formula
Percentage change = [(581 - 509) / 509] x 100
Subtract the new number by the original number
581 - 509 = 72
72 ÷ 509 = 0.14145383104125736
0.14145383104125736 x 100 = 14.15%