The simplest form of company valuation is Market Capitalization for public companies, calculated by multiplying the current share price by the total number of outstanding shares. For private firms, the simplest method is often the Book Value ( 𝐴 𝑠 𝑠 𝑒 𝑡 𝑠 − 𝐿 𝑖 𝑎 𝑏 𝑖 𝑙 𝑖 𝑡 𝑖 𝑒 𝑠 𝐴 𝑠 𝑠 𝑒 𝑡 𝑠 − 𝐿 𝑖 𝑎 𝑏 𝑖 𝑙 𝑖 𝑡 𝑖 𝑒 𝑠 ) or a Revenue Multiplier (e.g., 1 × 1 × - 2 × 2 × annual revenue).
Market capitalization is the simplest method of business valuation.
The Comparable analysis method is a simple yet effective approach to valuing your business. It involves estimating the worth of your business by comparing it to similar businesses in your industry. This method provides an observable value for your business based on the current market value of comparable companies.
The Market-Based Business Valuation Formula
P/E ratio: This metric compares a company's market price to its earnings. For example, if a similar business has a P/E ratio of 15 and the target company has earnings of $200,000, the business value is $200,000 × 15 = $3,000,000.
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.
Revenue multiple is the most straightforward valuation method used on Shark Tank. It's typically the first thing the Sharks calculate when hearing a pitch. To calculate the revenue multiple, divide the proposed company valuation by annual revenue.
Some common methods for calculating the value of a business include using:
12 common valuation mistakes
Market Capitalization
Market capitalization is one of the simplest measures of a publicly traded company's value. It's calculated by multiplying the total number of shares by the current share price.
You can expect to pay around $2,000 to $10,000 for a small business valuation, while a larger and more complex business can cost you up to $100,000 or more. In some instances, you can have your business valued for free.
One of the biggest startup mistakes is poor cash flow management. About 82% of unsuccessful startups fail because they fail to properly manage their cash flow, or how much money is coming in and out of the business.
Revenue/ earnings multiple
A more common - and simpler - method of valuing small and medium businesses uses a multiple of revenue or earnings. This calculation involves taking a company's earnings after all business expenses are paid and using an industry multiplier to generate a value.
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 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%.
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.
using the book value of assets rather than fair market value. making unrealistic assumptions in cash flow or earnings projections. ignoring changing sales trends. failing to consider governance and ownership transition capacity.