What is the difference between Population Growth and Population Change?

1. Growth of Population: It refers to the change in the number of inhabitants of a country ‘region during a specific period of time. Population growth can be expressed in the absolute numbers as well as percentage per annum. Annual growth rate is measured in terms of percentage. For example, if it is 2 per cent, there is an increase of 2 persons for every 100 persons.
2. Change in Population: It happens due to the birth rate, death rate and the migration. If birth rate is high and death rate is low, there will be a growth in population. In migration, people move across regions and territories. Migration can be internal or international. Internal migration does not change the size of the population but influences the distribution of population within the nation.