<P> The formula used to calculated RNI by demographers is as follows: </P> <P> ((Births in a year or Crude Birth Rate - Deaths in a year or Crude Death Rate) ÷ Total Population at the Start of the Year) × 100 = RNI </P> <P> * the result of this equation is usually reported as a percentage * </P> <P> An example of this calculation would be as follows: </P>

Why a country may not want to reduce its rate of natural increase