To calculate a company's valuation, use methods like Market Cap (Share Price x Shares), Earnings Multiples (e.g., P/E, EBITDA multiples), Comparable Analysis (looking at similar sold businesses), or Discounted Cash Flow (DCF), which projects future cash flows, with assets-based (Assets - Liabilities) as a floor value, combining these for a comprehensive assessment.
PBV Ratio (Price to Book Value Ratio)
The price-to-book value ratio is a traditional method of calculating company valuation. It is calculated by dividing the stock price by the stock's book value. However, this metric does not consider the company's intangible assets and future earnings.
Add up the value of everything the business owns, including all equipment and inventory. Subtract any debts or liabilities. The value of the business's balance sheet is at least a starting point for determining the business's worth. But the business is probably worth a lot more than its net assets.
This is how it works on the show — real life investors don't necessarily use a formula. At this point, the sharks usually ask how much the company made in the prior year. The valuation is then divided by that amount. If the company made $100,000 last year, it would be $1 million ÷ $100,000 = 10.
The founders who famously turned down a $30 million offer on Shark Tank were the sisters behind the dating app Coffee Meets Bagel (Dawoon, Arum, and Soo Kang) in 2015, with Mark Cuban offering to buy the whole company, the biggest in the show's history, but they declined to keep control and grow it themselves. As of 2025, their company's net worth was estimated at $150 million, with annual revenue around $36 million, showing they made a successful decision.
The most commonly used rule of thumb is simply a percentage of the annual sales, or better yet, the last 12 months of sales/revenues.
Service businesses typically sell for 2-3x their annual profit because they often depend heavily on the current owner's relationships and expertise. Manufacturing companies tend to command higher multipliers, often 4-5x their annual profit, due to their tangible assets and established processes.
This module examines the traditional property valuation methods: comparative, investment, residual, profits and cost-based.
Having 5% equity in a company means owning 5% of the company's total shares or value. As an equity holder, you are entitled to 5% of the company's profits (through dividends) and would receive 5% of the proceeds if the company is sold, after accounting for debts and liabilities.
Using findings from a private company's closest public competitors, you would determine its value by using the earnings before interest, taxes, depreciation, and amortization (EBITDA), also known as enterprise value multiple.
Our small business valuation calculator is a tool that helps business owners and entrepreneurs estimate their business's value by considering financial metrics like revenue, profit, and market trends. Our free business valuation calculator estimates your business's current value using the "Discounted Cash Flow" method.
Market approach
Find a comparable recently sold business, divide the sale price by its sales, EBIT, or EBITDA to get a “multiple,” then multiply your financials by this number to estimate value. Comparable Companies & Precedent Transactions: Looks at sales prices and valuation multiples from similar industry deals.
12 common valuation mistakes
Allow us to introduce the “Four Pillars of Value”: revenue, cost, risk, and time. These pillars are not mutually exclusive but together form a robust framework to articulate and maximize value. Let's break them down and see how they specifically apply to the legal services industry.
The Rule of 40 states that, at scale, the combined value of revenue growth rate and profit margin should exceed 40% for healthy SaaS companies. The Rule of 40 – popularized by Brad Feld – states that an SaaS company's revenue growth rate plus profit margin should be equal to or exceed 40%.
About half of all deals fail due diligence and never get finalized. There are probably instances where the Sharks try to renegotiate the deal but there are almost certainly instances where the entrepreneur was deceptive or flat out lied about their numbers.