Worked Examples
Part of Percentage Increase · GCSE GCSE Mathematics revision
This diagram covers Worked Examples within Percentage Increase for GCSE Mathematics. Revise Percentage Increase in Ratio & Proportion for GCSE Mathematics with 12 exam-style questions and 22 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 4 of 6 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.
Topic position
Section 4 of 6
Practice
12 questions
Recall
22 flashcards
🎯 Worked Examples
Example 1: Pay Rise
Problem: Sarah earns £24,000 and gets a 15% pay rise. What's her new salary?
Step 1: Identify the increase = 15%
Step 2: Convert to decimal = 15 ÷ 100 = 0.15
Step 3: Find multiplier = 1 + 0.15 = 1.15
Step 4: New salary = £24,000 × 1.15 = £27,600
Example 2: Price Increase
Problem: A laptop costs £800. The price increases by 12%. What's the new price?
Step 1: Increase = 12%
Step 2: Decimal = 0.12
Step 3: Multiplier = 1 + 0.12 = 1.12
Step 4: New price = £800 × 1.12 = £896
Example 3: Population Growth
Problem: A town has 45,000 residents. Population grows by 8% in one year. How many residents now?
Step 1: Growth = 8%
Step 2: Decimal = 0.08
Step 3: Multiplier = 1 + 0.08 = 1.08
Step 4: New population = 45,000 × 1.08 = 48,600
Keep building this topic
Read this section alongside the surrounding pages in Percentage Increase. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Percentage Increase
What multiplier is used to increase a value by 15%?
Ahmed says: 'To increase a price by 30%, I first find 30% of the price and then add it on. This always takes two steps.' Explain how Ahmed could use the multiplier method to find the answer in ONE step.
Quick Recall Flashcards
12 questions on Percentage Increase — practise free
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