15.79% is the change from 209 to 242
Calculation steps:
[( 242 - 209 ) ÷ 209] x 100 = 15.79%
Formula
Percentage change = [(242 - 209) / 209] x 100
Subtract the new number by the original number
242 - 209 = 33
33 ÷ 209 = 0.15789473684210525
0.15789473684210525 x 100 = 15.79%