Sell agreement or a prenuptial agreement may help establish the value of a business or a spouse's interest in it. Plug these two numbers into the previous selling price formula and calculate your total margin.Identify the parties involved in the transaction. 2. Buyer can become taxable in the state where target business is and the state's apportionment formula may become applicable to the buyer's worldwide operations. Not sure how to price your business services? Our guide covers how to determine pricing for services for your small business. In this series of posts, Middlesex Savings Bank will share tips to consider when planning and executing the sale of your business. Then view our SBA approved companies for sale to find one that you like.