For the fiscal year ending January 31, 2024, Walmart Inc. reported the following financial data: Revenue of $572,754 million, Cost of Goods Sold (COGS) of $426,900 million, Operating Expenses of $100,200 million, and Interest Expense of $3,000 million. The company’s Income Tax Expense was $10,500 million, resulting in a Net Income of $32,154 million. Walmart’s total assets were $244,000 million, and total equity was $81,000 million.

Questions:

1. Calculate Walmart's gross profit margin.
2. Determine Walmart's operating profit margin.
3. Compute Walmart's net profit margin.
4. Calculate the return on assets (ROA) for Walmart.
5. Compute the return on equity (ROE) for Walmart.