Chris$$s bistro serves Bar$-$B$-$Q Brisket. The $$as purchased$($AP$)$ cost of the brisket of the brisket is $$4\mathrm{.}29/$lb$.$ The yield factor of the brisket is $45\%.$ The serving size for the brisket is $6$ oz$.$ He sells the brisket for $$8\mathrm{.}50$ per portion.

What is the total cost of the briskets for the party?