Shandy Shutters has the following inventory information. Nov. 1 8 17 25 Inventory 15 units @ 6.00 Purchase 60 units @ 6.45 Purchase 30 units @ 6.30 Purchase 45 units @ 6.60 A physical count of merchandise inventory on November 30 reveals that there are 50 units on hand. Assume a perpetual inventory system is used. Calculate Cost of goods sold under; LIFO: FIFO: Average-cost method: (Show all of your computations!)