Required information [The following information applies to the questions displayed below.) Hemming Co. reported the following current-year purchases and sales for its only product. Date Activities Jan. 1 Beginning inventory Jan.10 Sales Mar. 14 Purchase Mar. 15 Sales July 30 Purchase Oct. 5 Sales Oct. 26 Purchase Totals Units Acquired at Cost 200 units 510 - $ 2,000 Units Sold at Retail 150 units $40. 350 units $15 5,250 300 units $40 450 units $20 9,000 430 units $401 100 units $25 1,100 units 2,500 $10,750 880 units Required: Hemming uses a perpetual inventory system. Assume that ending inventory is made up of 45 units from the March 14 purchase, 75 units from the July 30 purchase, and all 100 units from the October 26 purchase. Using the specific identification method, calculate the following. a) Cost of Goods Sold using Specific Identification Available for Sale Cost of Goods Sold Ending Inventory Date Activity Units Unit Cost Units Sold Unit Cost COGS Ending Inventory Unit Cost Unita Ending Inventory Cost Jan. 1 Beginning Inventory Mar. 14 Purchase July 30 Purchase Oct. 26 Purchase 1,100 88888 200 350 450 b) Gross Margin using Specific Identification Less Equals: