12.57% is the change from 509 to 573
Calculation steps:
[( 573 - 509 ) ÷ 509] x 100 = 12.57%
Formula
Percentage change = [(573 - 509) / 509] x 100
Subtract the new number by the original number
573 - 509 = 64
64 ÷ 509 = 0.12573673870333987
0.12573673870333987 x 100 = 12.57%