Finding % change: Real-world Applications

Mathematics
Grade 7
15 questions
~30 mins
1 views0 downloads

About This Worksheet

A worksheet exploring how to calculate percentage change in real-world contexts, designed for Grade 7 students.

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Finding % change: Real-world Applications

Subject: MathematicsGrade: Grade 7
Name:
Date:
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Untitled Worksheet

Grade Grade 7
A

Fluency & Practice

Answer all questions. Show your working in the grid spaces provided.
1.
A shirt originally costs $40. During a sale, it is discounted to $30. Calculate the percentage change in price.
[2 marks]
2.
A student scored 70 marks in a test and later scored 84. Find the percentage increase in their score.
[2 marks]
3.
A car's value decreased from $15,000 to $13,500. What is the percentage decrease?
[2 marks]
4.
A jacket's price increases from $50 to $60. What is the percentage increase?
[2 marks]
B

Problem Solving & Reasoning

Solve these multi-step problems and explain your reasoning where required.
1.
A store reduces the price of a laptop from $800 to $720. Later, they offer an additional 10% discount on the new price. What is the final percentage change in the original price?
[4 marks]
2.
A population of a town was 50,000 last year. This year, it increased to 55,000. Calculate the percentage increase in population and interpret what it means.
[4 marks]
3.
A company's revenue decreased from $200,000 to $180,000. What was the percentage decrease? Show your working.
[3 marks]
C

Real-world Applications

Apply your understanding to real-world scenarios and solve accordingly.
1.
A gym membership fee increased from $25 to $30 per month. What is the percentage increase? If a member was paying $25, how much more do they now pay in dollars?
[3 marks]
2.
A retailer reduced the price of a bicycle from $150 to $135 during a clearance sale. Calculate the percentage decrease in price and explain what this means for shoppers.
[3 marks]
D

Challenge & Extension

Tackle these more difficult problems to extend your understanding.
1.
A stock price increased from $50 to $75. Later, it decreased by 20%. What is the net percentage change in the stock's value from the original price?
[4 marks]
2.
A factory produced 10,000 units last month. This month, production increased by 15%. If they then reduce production by 10%, what is the overall percentage change in production? Show your working.
[4 marks]
E

Mixed Review

Answer these variety of questions to review your understanding.
1.
If a jacket's price is increased by 25% and then decreased by 10%, what is the overall percentage change?
[3 marks]
2.
A video game console was bought for $300. After a price increase of 15%, what is the new price? If it then goes on sale at 10% off, what is the final price?
[4 marks]
F

Error Analysis

Review these common mistakes and identify or correct them.
1.
A student calculated the percentage decrease from $200 to $150 as 25%. Identify the mistake and provide the correct percentage.
[3 marks]
2.
A value increased from $100 to $130. A student thought the % change was 30%. Explain why this is incorrect and find the correct percentage.
[3 marks]

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Details

Created
1/1/2026
Updated
1/1/2026
Type
worksheet