The most common and simplest form of business is a sole proprietorship. Many small businesses operating in the United States are sole proprietorships. An individual proprietor owns and manages the business and is responsible for all business transactions. The owner is also personally responsible for all debts and liabilities incurred by the business.
The current total fertility rate for the world is 2.5. Influencing this are countries that have TFRs of 6 and higher such as Niger (7.6), Democratic Republic of the Congo (6.3), and Uganda (6.2).
If there are 34 births per year in a population of 1,000 individuals, the annual per capita birth rate is 34/1000, or 0.034. If we know the annual per capita birth rate (expressed as b), we can use the formula B = bN to calculate the expected number of births per year in a population of any size.