Let:
P = Profit
Ts = Total sales
Te = Total expenses
[tex]\begin{gathered} P=Ts-Te \\ Ts=9.5+15.75=25.25 \\ Te=23.75 \\ P=25.25-23.75=1.5 \end{gathered}[/tex]---------------------------------------------------------------------------
[tex]\frac{3}{11}=0.272727\approx0.27[/tex]