Finding % Change: Problem Solving & Reasoning
Mathematics
Grade 7
12 questions
~24 mins
1 views0 downloads
About This Worksheet
A worksheet focused on understanding and calculating percentage change through various problem-solving and reasoning exercises.
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Full preview • 12 questions
Finding % Change: Problem Solving & Reasoning
Subject: MathematicsGrade: Grade 7
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Untitled Worksheet
Grade Grade 7
A
Introduction
Read the key concept below before attempting the questions.
1.
Percentage change measures how much a quantity has increased or decreased compared to its original value. The formula is: Percentage Change = (New Value - Original Value) / Original Value × 100%. Use this to find the percentage change in each problem.
[4 marks]B
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
A jacket originally costs $50. During a sale, it is discounted to $40. What is the percentage decrease in the price?
[2 marks]2.
A student scored 18 out of 20 in a test. Later, they improved their score to 22 out of 25. Find the percentage increase in their score.
[2 marks]3.
Calculate the percentage change when a company's profit rises from $10,000 to $12,000.
[3 marks]4.
A car's value depreciates from $15,000 to $12,000 over a year. What is the percentage depreciation?
[2 marks]5.
A population of a town increased from 45,000 to 48,000. Find the percentage increase in population.
[2 marks]6.
A retailer notices a 15% increase in sales after a marketing campaign. If their original sales were $20,000, what are the new sales figures?
[3 marks]7.
Construct a triangle on the grid where one side is 6 cm, and another side is 9 cm. If the length of the third side increases by 20%, what is the new length?
[3 marks]8.
A bicycle's price was increased from $300 to $330. What was the percentage increase?
[2 marks]9.
A company's revenue decreased from $50,000 to $45,000. Calculate the percentage decrease.
[2 marks]10.
A population of a city drops from 1,200,000 to 1,140,000. Find the percentage decrease.
[2 marks]11.
A store initially had 500 customers per week. After a promotional event, the number increased to 575. What is the percentage increase?
[2 marks]Quick Actions
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Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet