For the fiscal year ending December 31, 2023, Berkshire Hathaway Inc. reported the following financial information: Total Revenue of $365,080 million, Operating Expenses of $280,620 million, and Net Income of $60,570 million. The company’s total assets were $980,230 million, and total equity was $750,450 million.

Questions:

1. Calculate Berkshire Hathaway’s operating profit margin.
2. Compute Berkshire Hathaway’s net profit margin.
3. Calculate the return on assets (ROA) for Berkshire Hathaway.
4. Compute the return on equity (ROE) for Berkshire Hathaway.
5. If Berkshire Hathaway’s total liabilities were $229,780 million, what is the debt to equity ratio?