sometimes, entrepreneurs or business plan writers include a slide of business valuation in the financial section based on simple earning multiples or running a small DCF at their end. Though the financial projections are used in the valuation process, leave it for the investors to do. Lacking enough training or knowledge of the business valuation process, you may end up putting a very low value or a ridiculously high value on your business. This can reflect a lack of understanding and the true potential of your own concept. So unless your investor requires the valuation, do not include it in the financial section of your business plan.