Answer :
[tex]2+2\times p=3[/tex]
where p is the percent of change
now, solve p
[tex]\begin{gathered} 2p=3-2 \\ p=\frac{1}{2} \\ \end{gathered}[/tex]the percent is 0.5 we can multiplt with 100 to have the percent number
[tex]\begin{gathered} 0.5\times100 \\ =50 \end{gathered}[/tex]so, the percent of change is 50%