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If a region's population rises from 800000 to 840000, what is the percentage growth?

Answer and explanation

Correct answer: 5 percent

Percentage growth is measured relative to the initial population, not the final population. The initial population is 800,000 and the final population is 840,000. First find the absolute increase: \(840000-800000=40000\). Then divide this increase by the initial value and multiply by 100: \(\frac{40000}{800000}\times100=5\) percent.

Therefore, option B is correct. The final population is 840,000, but it should not be used as the base for ordinary percentage growth from the original population. Using the initial population is important because the question asks how much the population grew from its starting level. The result says that for every 100 people initially, there are now 105.

Related tags

Percentage GrowthPopulation CalculationAbsolute IncreaseGrowth RatePopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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