This document discusses various financial ratios used to analyze a firm's financial statements. It covers liquidity ratios like current and quick ratios, activity ratios like inventory, debtors, and creditors turnover ratios, capital structure ratios like debt-equity ratio and interest coverage ratio, and profitability ratios like gross profit ratio, net profit ratio, operating ratio, return on investment, earnings per share, dividend yield, and price-earnings ratio. These ratios are calculated using figures from a company's balance sheet and income statement and help evaluate its operational efficiency and financial health.