To calculate the annual population growth rate, you can use the formula:
Growth Rate = (Δy + Births – Deaths) / y
Where:
- Δy = Change in population over the year
- Births = Total number of births over the year
- Deaths = Total number of deaths over the year
- y = Initial population before the growth
Step-by-step explanation:
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Determine the initial population (y) for the year you’re analyzing.
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Gather the data for the number of births and deaths that occurred over the year.
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Calculate the change in population (Δy) by subtracting the initial population from the new population at the end of the year, or simply use the formula as needed.
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Plug these values into the formula:
Growth Rate = (Δy + Births – Deaths) / y
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Finally, multiply the result by 100 to express the growth rate as a percentage.
This formula will help you understand the net change in population due to births and deaths relative to the initial populations, allowing you to assess how quickly a population is growing or declining.