Cullumber Company uses a periodic inventory system. Its records show the following for the month of April, with 25 units on hand at April 30: Units Unit Cost Total Cost April 1 Inventory 30 $8 $240 12 Purchases 45 10 450 16 Purchases 17 _ 11 187 _ Total 92 __ $877__ (a) Calculate the ending inventory and cost of goods sold at April 30 using the FIFO and weighted average cost formulas