What existing problems or needs does your product or service solve for your customers? This is one of the most important questions to answer, because ultimately, your product or service is just another one available unless it clearly and uniquely solves a problem or need which buyers face. To give an example, let's say your product is a software application that helps you manage your finances and taxes. There are a few applications in the market which do that already. So, what does your application do that others don't? Is it better on features, is it faster? Is it more secure? Is it more user_friendly? Is it more portable? Does it really help someone save money or increase their net worth? Can you see why getting clear on the solution you offer to your target market is so crucial?
A plan like this would show you how much sales your business would need to do, what your fixed and variable expenses would be, what your material cost, labor cost and profit would need to be to provide the income and profit margin you want. You can see pretty quickly if it's possible for you to get your business to that level. I don't know of any better way than to have your business give you the income and profit you want. What's neat is you can determine what you want your income to be and your profit to be over the next few years and develop a plan that can show you exactly what your business would need to do to give you that income and profit. And with just a little more data you can actually determine how many customers you would need for each year you plan for and how many leads you would need. From that you can actually determine what size market you would need and whether your market is big enough to supply those leads that could be converted into customers.