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Cullumber Distribution markets CDs of numerous performing artists. At the beginning of March, Cullumber had in beginning inventory $2,700$ CDs with a unit cost of $\backslash (\backslash$$ $6\mathrm{.}00\backslash ).$ During March, Cullumber made the following purchases of CDs$.$

During March $11,700$ units were sold. Cullumber uses a periodic inventory system.

$($a$)$

Your answer is incorrect.

Determine the cost of goods available for sale.

Cost of goods available for sale $\backslash$$

Calculate weighted$-$average cost per unit. $($Round answer to $3$ decimal places, e$.$g$.5\mathrm{.}125.)$

Weighted$-$average cost per unit $\backslash (\backslash$$ $\backslash )$

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