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mathematics UK Year 8 Mathematics (KS3)
 
Solved problems for the chapter:
 

Percentage increase and decrease

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Proportion and percentage change
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Detailed solution steps are available at:
 
https://en.openprof.com/wb/chapter:percentage_increase_and_decrease/3983/


Example 1.

Tina bought a dress that was reduced by 30%. She paid 40 euros for it. What was the original price of the dress?

    
Example 2.

Air ticket cost £664. It was then raised by 25%. How much does the new plane ticket cost?

    
3.

A table initially cost £600. They then reduced the price by 16% and then raised it by 15% from the reduced price. How much does the table cost now?

    
4.

Loveth had 360 stamps in her collection. Her collection has recently increased by 15%. How many stamps does she have in her collection now?

    
5.

Sara bought a handbag at an increased of 22%. If she paid £61 for the bag, how much does the bag cost before the increment?

    
6.

The price of a television in the store was initially € 450. They have recently reduced the price by 20%. What is the new price of television?

    
7.

The price of the mower went up from pounds to pounds. What is the percentage increase (round the result to one decimal place)?

    
8.

Price per share fell from pounds per share to pounds per share. What is the percentage decrement?

    

9.

There were participants in the last year’s marathon and there are participants this year’s. What is the percentage decrement in the number of participants between last year and this year? (Leave your answer in the nearest integer)