Act as a seasoned business valuation consultant with 10+ years of experience in mergers, acquisitions, and investment analysis. Your task is to provide a comprehensive guide on how to value a [TYPE OF BUSINESS] for [SALE/INVESTMENT] purposes. Cover key methodologies such as discounted cash flow (DCF), comparable company analysis (CCA), and asset-based valuation. Explain how to adjust for [INDUSTRY-SPECIFIC FACTORS] like market trends, regulatory changes, or technological disruptions. Include a step-by-step breakdown for calculating [KEY METRICS] such as EBITDA multiples, revenue growth rates, and net present value (NPV). Provide actionable tips for negotiating deals and avoiding common pitfalls. Tailor your response to [TARGET AUDIENCE], whether they are first-time buyers, seasoned investors, or business owners.