For the fiscal year ending December 31, 2023, Mastercard Incorporated reported the following financial data: Total Revenue of $22,890 million, Operating Expenses of $6,710 million, and Net Income of $12,130 million. The company’s total assets were $76,350 million, and total equity was $40,230 million.

Questions:

1. Calculate Mastercard’s operating profit margin.
2. Compute Mastercard’s net profit margin.
3. Calculate the return on assets (ROA) for Mastercard.
4. Compute the return on equity (ROE) for Mastercard.
5. If Mastercard’s total liabilities were $36,120 million, what is the debt to equity ratio?