Feripde Inventory by Three Methodt; Cost of Merchindise Sold The uaits of an item avallable for sale daring the year were at follow: There mere 80 units of the item in the athysical iveitecy at becember 31. The periodic inwatory syctem is wied. Detarmine the inventary cost and the cost of merchandise sold by twret methods. Round interim calculations to one decimal and final answers to the nearest whole doliar