7.2% is the change from 542 to 581
Calculation steps:
[( 581 - 542 ) ÷ 542] x 100 = 7.2%
Formula
Percentage change = [(581 - 542) / 542] x 100
Subtract the new number by the original number
581 - 542 = 39
39 ÷ 542 = 0.07195571955719557
0.07195571955719557 x 100 = 7.2%