Many furniture stores run "going out of business" sales but never go out of business. in order for the shut-down decision to be the appropriate one, the price of furniture must be the average variable cost.

the u.s. census bureau produces data on the population and economy nationwide. it can you to analyze the kind of people living in your neighborhood. it does not show you the market of people willing to buy your product or an existing market for your product. that will require more market research. the census bureau only gives you an insight to the demographics in your area.