when calculating the rate of natural increase one does not include
Rate of natural increase In demographics, the rate of natural increase (RNI) is the crude birth rate minus the crude death rate.[1] This rate excludes population increase from in migration and out migration. When looking at countries, it gives an idea of what position in the Demographic Transition Model, but to find out how much a country is growing, the population growth rate should be observed. The Demographic Transition Theory explains the rate of natural increase relate to the economic growth.
Rate equation A first order reaction depends on the concentration of only one reactant (a unimolecular reaction). Other reactants can be present, but each will be zero order. The rate law for a reaction that is first order with respect to a reactant A is