Sales during the year were 1140 units. Beginning inventory was 360 units at a cost of $5 per unit. Purchase 1 was 570 units at $6 per unit. Purchase 2 was 880 units at $7 per unit. Required: a. Assume the periodic inventory system is used. Calculate cost of goods sold and ending inventory using FIFO method. (Enter all values as a positive value.) Periodic ETEO Cost of Goods Available for Sale Cost of Goods of Cost per All units unit Sale Cost of Goods Sold of units Cost per Cost of sold unit Goods Sold Inventory Balance # of units in ending Cost per Ending unit Inventory inventory Beg Inventory Purchases Purchase 1 Purchase 2 Total b. Assume the periodic inventory system is used. Calculate cost of goods sold and ending inventory using LIFO method. (Enter all values as a positive value.) Periodic UFO Cost of Goods Sold Cost of Goods Available for Sale of Cost per cost of Goods units Available for unit - Sale of units sold Cost per unit Cost of Goods Sold Inventory Balance our Cost pe Ending d ig Inventory inventory In ending unit Beg. Inventory Purchases Purchase 1 Purchase 2 Total