Company: Microsoft Corporation

Item	Amount (in millions)
Revenue	$198,270
Cost of Goods Sold (COGS)	$59,850
Gross Profit	$138,420
Operating Expenses	$50,000
Operating Income	$88,420
Interest Expense	$2,100
Income Tax Expense	$16,300
Net Income	$70,020

Questions:

1. What is Microsoft's gross profit margin?
2. Calculate Microsoft's operating profit margin.
3. Determine Microsoft's net profit margin.
4. If Microsoft’s total assets are $334,000 million, what is the return on assets (ROA)?
5. What is the return on equity (ROE) if Microsoft’s total equity is $155,000 million?