19.56% is the change from 542 to 648
Calculation steps:
[( 648 - 542 ) ÷ 542] x 100 = 19.56%
Formula
Percentage change = [(648 - 542) / 542] x 100
Subtract the new number by the original number
648 - 542 = 106
106 ÷ 542 = 0.19557195571955718
0.19557195571955718 x 100 = 19.56%