Using the specific identification method: Date June 1 Units purchased 12 Echo Show's 360 Cost per unit $ 266 July 1 51 Echo Show's 360 August 1 59 Echo Show's 360 a. Calculate the cost of ending inventory. Ending inventory b. Calculate the cost of goods sold. Cost of goods sold Ending inventory 241 231 6 Echo Show's from June 16 Echo Show's from July 13 Echo Show's from August