Help please

CLICK HERE TO REVIEW LEARNING OBJECTIVES QUESTION 2 Not complete Marked out of 6.00 P Flag question Inventory Costing Methods-Perpetual Method Using the data below, assume that Graham Corporation uses the perpetual inventory system. Calculate the value of ending inventory and cost of goods sold at year-end using the perpetual method and (a) first-in, first-out, (b) last-in, first-out, and (c) weighted-average cost method. Units Unit Cost Beginning Inventory, January 1 1,200 $68 Purchases: February 11 1,500 $69 70 72 May 18 October 23 March 1 July 1 October 29 1,400 1,100 1,400 1,400 1,000 Sales: Round the cost per unit to 3 decimal places and round your final answers to the nearest dollar a. First-In, First-Out Ending Inventory$ 0 $ Cost of goods Sold