Ratio & ProportionKey Facts
Key Facts: Percentage Decrease
Part of Percentage Decrease — GCSE Mathematics
This key facts covers Key Facts: Percentage Decrease within Percentage Decrease for GCSE Mathematics. Revise Percentage Decrease 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 2 of 5 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 2 of 5
Practice
12 questions
Recall
22 flashcards
🔑 Key Facts: Percentage Decrease
- Percentage decrease = finding a new amount after subtracting a percentage
- Multiplier method = 1 - (percentage ÷ 100)
- New amount = Original amount × Multiplier
- Common examples: discounts, depreciation, population decline, weight loss
- Multiplier < 1 always (because we're taking away from the original)