Additional Algo $11-6$ Holding Cost per Unit

A company usually holds $220$ pounds of wax in its warehouse. The company uses $51$ pounds of wax per day and it takes $3$ days for wax purchased from the supplier to arrive. The holding cost for wax is $$0\mathrm{.}64$ per pound per day.

What is the company's average holding cost $($per pound for wax$)?$

Note: Round your answer to $2$ decimal places.

Average holding cost per unit