Company: Samsung Electronics

Item	Amount (in millions)
Revenue	$200,734
Cost of Goods Sold (COGS)	$120,444
Gross Profit	$80,290
Operating Expenses	$25,600
Operating Income	$54,690
Interest Expense	$2,500
Income Tax Expense	$10,800
Net Income	$41,390

Questions:

1. What is Samsung's gross profit margin?
2. Calculate Samsung's operating profit margin.
3. Determine Samsung's net profit margin.
4. If Samsung’s total assets are $340,000 million, what is the return on assets (ROA)?
5. What is the return on equity (ROE) if Samsung’s total equity is $140,000 million?