A few simple numbers you must know before buying stocks.The Defensive & Analytical Focus Welcome to 'Knowing Your Numbers,' the first video in a two-part series dedicated to protecting your capital and building wealth with confidence. There’s an old rule in investing: Rule #1, Don't lose money. If you never invest, you've won that first rule! But to truly grow, you have to master Rule #2: Figure out how to make money—safely.That's where due diligence comes in. Today, we turn you into a financial detective, zeroing in on the critical numbers and ratios that reveal a stock's true health. We’ll break down the power of the Price-to-Earnings (P/E) Ratio, the forward-looking Price-to-Sales, and why Free Cash Flow is often a more reliable indicator than Net Income.We'll also look beyond the balance sheet to the risks: understanding a stock's Volatility (Beta) and the speculative weight of Short Interest. If you're ready to stop relying on tips and start basing your investment decisions on concrete facts, this video is your essential guide to fundamental analysis.