Raptor Books has the following inventory schedule for its Financial Accounting textbooks. Date Quantity Unit Cost Sale Price Beginning Inventory 2/1/2021 35 $10 Purchase 2/6/2021 45 $11 $12 Purchase 25 Sale 60 $25 2/12/2021 2/15/2021 2/21/2021 2/28/2021 55 $13 Purchase Sale 40 $25 Assuming the company uses Weighted Average Cost for its inventory cost flow method, what is the weighted average cost of the inventory as of the sale on 2/28/2021? Weighted Average Cost on 2/28: (WAC)