Demand for a book at Amazon is $265$ units per week $($assume $52$ weeks per year$).$ The book is supplied to Amazon from the book publisher for $$10$ per book plus the cost of shipping the order. The shipping cost has a fixed cost of $$55$ per order and a variable cost of $$2$ per book shipped. So$,$ the cost of the books is $$12$ per book, plus $$55$ times the number of orders placed.

Assume the annual inventory carrying cost is $21$ percent.

What is the annual holding cost per book?