If you’re trying to figure out what your business might be worth, it’s helpful to consider what acquirers are paying for companies like yours these days.
A little internet research will probably reveal that a business like yours trades for a multiple of your pre-tax profit, which is Sellers Discretionary Earnings (SDE) for a small business and Earnings Before Interest Taxes, Depreciation and Amortization (EBITDA) for a slightly larger business.