This document provides an overview of common size and comparative financial statements as well as financial ratio analysis. It discusses how to calculate key ratios like the current ratio, inventory turnover, days' sales in inventory, receivables turnover, days' sales in receivables, and profit margin. These ratios are important for both internal performance evaluation and external assessment by creditors, suppliers, customers, and stockholders. Calculating ratios allows companies to evaluate their financial health over time and compare to other companies in the same industry.