You have the following items on the menu:

BBQ special: $$12\mathrm{.}00$ selling price with a $40\%$ food cost.

Milkshake: $$6\mathrm{.}00$ selling price with a $20\%$ food cost.

Sub sandwich: $$8\mathrm{.}00$ selling price with a $35\%$ food cost.

Fish platter: $$10\mathrm{.}00$ selling price with a $30\%$ food cost.

Which one is the most profitable?

BBQ special: $$12\mathrm{.}00$ selling price with a $40\%$ food cost.

Milkshake: $$6\mathrm{.}00$ selling price with a $20\%$ food cost.

Sub sandwich: $$8\mathrm{.}00$ selling price with a $35\%$ food cost.

Fish platter: $$10\mathrm{.}00$ selling price with a $30\%$ food cost.