Assess students' ability to recall and apply formulas for key financial ratios across four categories—liquidity (current, quick), profitability (gross margin, net profit margin, ROA, ROE), efficiency (inventory turnover, receivables turnover, asset turnover), and solvency (debt-to-equity, interest coverage). Tasks include identifying each ratio's category, computing ratios from simple financial-statement figures, and interpreting basic implications of the results. Suitable for medium-difficulty recall and calculation exercises.