Percentage Increase and Decrease Quiz
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Questions and Answers

What happens to a value when it decreases by 20%?

  • It becomes 20% of the original value
  • It becomes 80% of the original value (correct)
  • It becomes 120% of the original value
  • It becomes 100% of the original value
  • If a value increases by 30%, what is the resulting value as a percentage of the original value?

  • 130% (correct)
  • 30%
  • 300%
  • 170%
  • If a quantity decreases by 25% and then increases by 40%, what is the net percentage change?

  • 15% increase
  • 5% decrease (correct)
  • 15% decrease
  • 5% increase
  • Study Notes

    Percentage Changes

    • When a value decreases by 20%, its new value is 80% of the original value.
    • If a value increases by 30%, its resulting value is 130% of the original value.
    • If a quantity decreases by 25% and then increases by 40%, its net percentage change is 5% (25% decrease + 40% increase).

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    Description

    Test your knowledge of percentage increase and decrease with this quiz. Explore scenarios involving 20% decrease, 30% increase, and combined changes to calculate net percentage change.

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