This document discusses using financial ratios to analyze the financial performance and position of businesses. It identifies major categories of ratios including profitability, efficiency, liquidity, gearing/risk, and investment. Specific ratios are defined such as the current ratio, acid test ratio, inventory turnover, net asset turnover, receivables collection period, debt to equity, dividend yield, earnings per share, and price to earnings. Limitations of ratio analysis are noted. The document provides an overview of interpreting financial ratios to evaluate businesses.