Calculation method of population growth rate

The calculation method of population growth rate is: population growth rate = (year-end population-year-end population)/year-end population × 100%. Among them, the population at the end of the year refers to the current population data of 65438+February 3 1, and the population at the beginning of the year refers to the population data of the previous year of 65438+1 October1.

1, the population growth rate is an important indicator to measure the population growth rate of a country or region in a certain period, usually expressed by the annual population growth rate. The calculation method of population growth rate is usually based on census or statistical survey data.

2. The calculation result of population growth rate is usually expressed in percentage form, reflecting the increase or decrease of population in a certain period. If the calculation result is positive, it means that the population is increasing; If the calculation result is negative, it means that the population is decreasing.

3. Different countries and regions have different population growth rates. Some countries and regions have higher population growth rates, such as some African and Latin American countries; However, the population growth rate in other countries and regions is low, such as some European and Asian countries. The change of population growth rate will also be affected by many factors, such as fertility rate, mortality rate, immigration, birth rate and so on.

The concept of population growth rate

1, the population growth rate refers to the percentage change of population in a region over a period of time. It reflects the speed and trend of population growth in this region, and is an important indicator to measure the economic development, social progress and resource and environmental pressure of a region.

2. The population growth rate can be calculated by two methods: natural growth rate and mechanical growth rate. Natural growth rate refers to the growth rate caused by the natural population growth in a region (the birth rate is higher than the death rate). Mechanical growth rate refers to the growth rate caused by population migration (such as immigration and urbanization).

3. When studying population growth, we should also consider the influence of population structure, age distribution, gender ratio and urban-rural ratio on population growth. At the same time, we also need to pay attention to the influence of population growth on resources, environment, social economy, political culture and so on, and how to formulate scientific and reasonable population policy to realize the coordinated development of population and economy and society.