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 5 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 5
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