Given the following data, calculate the cost of goods sold using the average minuscost method. Round average cost per unit calculations to two decimal places. Round final answer to the nearest dollar.

Date	Item	Unit
1/1	Beginning inventory	40 units at $10 per unit
5/10	Purchase of inventory	40 units at $10 per unit
10/9	Purchase of inventory	40 units at $ 22 per unit
12/31	Ending inventory	28 units