The followings are inventory transactions during May.
5/1 Beginning inventory of 300 units at $10/unit
5/5 Bought 700 units at $11/unit.
5/10 Sold 600 units for $16/unit.
5/15 Bought 1,000 units at $12/unit.
5/25 Sold 1,300 units for $16/unit.
Instructions: Compute costs of goods sold (COGS) and costs of ending inventory for May using the following
methods under the perpetual inventory system as of 5/31.
1. Average method.
2. First In First Out method.
3. Last In First Out method.
