(b) Calculate the cost of goods sold for May and the ending inventory at May 31 using the average cost formula. (For overase, use 3 decimal places, e.g. 15.235 in your calculations and round fuel answers to 2 decimal plocas, es 5.25.) $ Cost of goods sold Ending Inventory $ (b) Calculate the cost of goods sold for May and the ending inventory at May 31 using the average cost formula. (For overase, use 3 decimal places, e.g. 15.235 in your calculations and round fuel answers to 2 decimal plocas, es 5.25.) $ Cost of goods sold Ending Inventory $