Company: Amazon.com, Inc.

Item	Amount (in millions)
Revenue	$469,822
Cost of Goods Sold (COGS)	$272,344
Gross Profit	$197,478
Operating Expenses	$112,384
Operating Income	$85,094
Interest Expense	$2,700
Income Tax Expense	$18,000
Net Income	$64,394

Questions:

1. What is Amazon's gross profit margin?
2. Calculate Amazon's operating profit margin.
3. Determine Amazon's net profit margin.
4. If Amazon’s total assets are $420,549 million, what is the return on assets (ROA)?
5. What is the return on equity (ROE) if Amazon’s total equity is $134,500 million?