Believe it or not, there’s no right or wrong way to work out how much a business is worth. Experts use loads of different valuation methods — and the number those calculations come up with will vary greatly depending upon the criteria set forth. That being said, if you know exactly what it is you value in a business, it’s not hard to work out a ballpark figure. After all, nobody in their right mind would pay for an existing business without knowing what it’s worth.