Percentage Increase and Decrease Quiz
Practise percentage rises, reductions and repeated changes with step-by-step answers.
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Choose a focused 5-question round or try 10 mixed questions from all levels. You can repeat the quiz and improve your personal best.
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How to take the Percentage Increase and Decrease Quiz
Choose a level, answer each question, and read the worked explanation before continuing. The mixed challenge takes 10 questions. After the round, review missed answers and choose a new practice level.
For more practice, try the Add or Subtract Percentage Calculator or explore the related learning games.
Common questions about Percentage Increase and Decrease Quiz
Does this quiz show the answers?
Yes. Every question has one checked answer and a worked explanation. Incorrect answers can be reviewed at the end.
Do I need an account?
No. This is free browser-based practice. Your best result is stored locally on this device.
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Study guide and worked examples
Learn the method before starting. Each example shows a complete solution.
Increase a price
Increase 150 by 20%: 150 × 1.20 = 180.
Reduce an amount
Decrease 80 by 25%: 80 × 0.75 = 60.
Successive percentages
A 20% increase then a 20% decrease from 100 gives 100 × 1.20 × 0.80 = 96, not 100.
Test your understanding using Add or Subtract Percentage Calculator and then review your mistakes in the quiz.