$($Appendices $6$A and $6$B$)$ Inventory Costing Methods

Spiegel Department Store has the following data for inventory, purchases, and sales of merchandise for December:

Spiegel uses a periodic inventory system. All purchases and sales are for cash.

Required:

Compute cost of goods sold and the cost of ending inventory using FIFO. If required, round your answers to the nearest cent.

Cost of goods sold

Cost of ending inventory

Compute cost of goods sold and the cost of ending inventory using LiFO. If required, round your answers to the nearest cent.

Cost of goods sold

Cost of ending inventory

Compute cost of goods sold and the cost of ending inventory using the average cost method. $($Note: Use four decimal places for per$-$unit calculations.$)$ Round your a