This document provides an overview of financial ratio analysis. It discusses the different types of ratios that can be used, including liquidity ratios, profitability ratios, activity ratios, leverage ratios, and shareholder ratios. Liquidity ratios measure a company's ability to meet short-term obligations, and include the current ratio, quick ratio, and net working capital to sales ratio. The document uses Microsoft's 2004 financial statements to calculate examples of liquidity ratios. It also discusses the importance of considering a company's operating cycle when analyzing liquidity ratios.