Play the tenth bullet of the US stock market! How did Buffett analyze high-quality stocks through financial reports? 🔺 Gross profit margin: gross profit/revenue |>40% 🔺 The ratio of sales, general and administrative expenses (SG&A) to gross profit: SG&A/gross profit |<30% 🔺 R&D expenses to gross profit ratio: R&D/gross profit |<30% 🔺 Depreciation to gross profit ratio: Depreciation/gross profit |<10% - Interest to operating income ratio: Interest/operating income |<15% 🔺 Tax to pre tax income ratio: Tax/pre tax income | Consistent with corporate tax rate 🔺 Net income to income ratio: Net income/income |>20% 🔺 Earnings per share (EPS) growth: second year EPS/first year EPS | showing positive growth