The rate of population change is 1% when in a population of 2,000 people, 40 babies are born and 20 people die.
The rate of rise in a population's size during a specific time period, represented as a percentage of the beginning population, is known as the "population growth rate." The term "population growth rate" describes the change in population during a unit of time, represented as a percentage of the population's size at the start of the period.
Population increase is indicated by a positive growth rate, whereas population decline is shown by a negative growth rate. A growth ratio of zero means that there were exactly the same number of people at the beginning and the end of the period. This is true even if there have been considerable changes in the birth, death, immigration, and age distribution rates.
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