Using the specific identification method: Cost per Date Units purchased unit Ending inventory 4 Echo Show's from June 14 Echo Show's 360 $284 259 249 June 1 10 Echo Show's from July 7 Echo Show's from August July 1 August 1 50 Echo Show's 360 68 Echo Show's 360 a. Calculate the ending inventory Ending inventory b. Calculate the cost of goods sold. Cost of goods sold