A town's population was 500 in 2015 and 650 in 2020. By what percentage did the population change between the two years?
Answer and explanation
Correct answer: D. 30% increase
- Step 1: Change = 150.
- Step 2: Percentage change = 150 ÷ 500 × 100 = 30%, so the population increased.
Answer
30% increase.
Why not the others: 150 people: this is the number difference, not the percentage. 23,1% increase: the change was divided by the later year instead of the earlier year. 40% increase does not fit.
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