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Percentage Change

Test your understanding of using percentages with this self marking quiz about percentage change.

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This is level 3: find the percentage increase given the original and final values. You can earn a trophy if you get at least 7 questions correct. You can use a calculator.

1. Find the percentage increase if 140 increases to 259. % Correct Wrong

2. Find the percentage increase if 160 increases to 168. % Correct Wrong

3. If 180 increases to 279, by what percentage has it increased? % Correct Wrong

4. Yesterday a painting was valued at £24. Last year it had been valued at £20. By what percentage had the valuation increased?Artist % Correct Wrong

5. At the last count there were 702 cars passing a junction each hour. Two years ago there were only 650 cars passing the junction each hour. By what percentage has the number of cars increased? % Correct Wrong

6. Find the percentage increase in the number of butterflies estimated in a butterfly farm. Last year the estimate was 450 and this year it was 522. % Correct Wrong

7. There are now 448 fans of the Wolftree Football Club. Last year there were only 350 fans. By what percentage has the number of fans increased? % Correct Wrong

8. The number of Stirbooks coffee shops in the world increased from 60500 to 85910 in the last five years. By what percentage has the number of shops increased? % Correct Wrong

9. A total of 7800 blades of grass were counted in one square meetre of a lawn. After adding fertiliser the count one month later was 13572 blades, by what percentage had the amount of grass increased? % Correct Wrong

10. A station could cope with 11600 passengers per day. After extending the platforms and ticket office it could accomodate 14964 passengers per day. Express this increase as a percentage. % Correct Wrong

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This is Percentage Change level 3. You can also try:
Level 1 Level 2 Level 4 Level 5 Level 6 Level 7

Instructions

Try your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help.

When you have got all of the questions correct you may want to print out this page and paste it into your exercise book. If you keep your work in an ePortfolio you could take a screen shot of your answers and paste that into your Maths file.

Why am I learning this?

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Description of Levels

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Simple Percentages - A good place to start.

Level 1 - Find the new amount after a percentage increase.

Level 2 - Find the new amount after a percentage decrease.

Level 3 - Find the percentage increase given the original and final values.

Level 4 - Find the percentage decrease given the original and final values.

Level 5 - Find the original amount after a percentage increase or decrease given the final value.

Level 6 - Mixed questions.

Level 7 - Challenging questions.

Switch - Practise percentage increase and decrease calculations by completing this table.

Exam Style questions are in the style of GCSE or IB/A-level exam paper questions and worked solutions are available for Transum subscribers.

Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.

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Curriculum Reference

See the National Curriculum page for links to related online activities and resources.

Example

You may want to use a calculator for some of the questions. See Calculator Workout skill 3.

Don't wait until you have finished the exercise before you click on the 'Check' button. Click it often as you work through the questions to see if you are answering them correctly.

Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.

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