An ill-informed investor can lose cash if he wagers on a stock only on the basis of the numbers flashing on a real-time stock screen. A critical analysis of a company's financial background is a must for a better investment decision, especially at a time when the stock market is juggling myriad issues. Often, investors evaluate a company's performance by simply looking at its sales and earnings, which sometimes do not reveal the real picture. To be more precise, they do not tell whether a company's fundamen ...