Respuesta :

Answer:

Mark up = 39.09%

Step-by-step explanation:

Cost price = $11

Selling price = $15.3

Profit = Selling price - Cost price

        = 15.3 - 11

       = $4.3

[tex]Mark - up = \frac{Profit}{cost} \times 100[/tex]

               [tex]=\frac{4.3}{11} \times 100\\\\=39.09 \%[/tex]