Berkshire Hathaway Inc.
 Data for the year ended December 31, 2023:

Item	Amount
Total Revenue	$600,000,000
Cost of Goods Sold	$350,000,000
Operating Expenses	$200,000,000
Income Tax Expense	$50,000,000
Net Income	$50,000,000

1. Calculate Berkshire Hathaway's gross profit margin.
2. Determine Berkshire Hathaway's operating profit margin.
3. Analyze the impact of income tax expense on Berkshire Hathaway's net income.
4. Discuss how Berkshire Hathaway recognizes revenue across its diversified portfolio.
5. Evaluate Berkshire Hathaway's profitability using the return on equity (ROE) ratio.
6. Explain the components of Berkshire Hathaway's operating expenses.