7.47% is the change from 509 to 547
Calculation steps:
[( 547 - 509 ) ÷ 509] x 100 = 7.47%
Formula
Percentage change = [(547 - 509) / 509] x 100
Subtract the new number by the original number
547 - 509 = 38
38 ÷ 509 = 0.07465618860510806
0.07465618860510806 x 100 = 7.47%