Amazon.com, Inc. is evaluating its inventory valuation methods. The following data is provided:

● Beginning Inventory: $10,000,000

● Purchases: $20,000,000

● Sales Revenue: $30,000,000

● Ending Inventory: $15,000,000

a) Calculate the Cost of Goods Sold using FIFO method. b) Determine the Cost of Goods Sold

using LIFO method. c) Analyze the impact of inventory valuation methods on financial

statements. d) Evaluate the implications of using FIFO vs. LIFO during inflationary periods. e)

Assess the choice of inventory valuation method for Amazon.