Haleigh uses a perpetual inventory system. The following is information about one inventory item for the month of September: Sept. 1 Inventory 20 units at $20 4 Sale 10 units 10 Purchase 30 units at $25 17 Sale 20 units 30 Purchase 10 units at $30 How much would the sale have been on September 17 assuming LIFO was used? 20 units @ $30 10 units @ $25 20 units @ $25 20 units @ $20