An 20X9, KBH Corp. sells 6,800 units $70 each. It began the year with an inventory of 750 units at $22 each and made the following purchases: March 17 June 15 Sept. 4 Dec. 23 Purchase 2,600 units@ $24 per unit Purchase 300 units@ $26 per unit Purchase 1,500 units@ $28 per unit Purchase 2,200 units@ $30 per unit If KBH uses the periodic method and FIFO costing, what is KBH's: a. ending inventory? b. cost of goods sold