Key Facts: Percentage Decrease
Part of Percentage Decrease · GCSE GCSE Mathematics revision
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. Use this page as part of a wider topic revision path rather than treating it as an isolated fact. It is section 2 of 6 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 6
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)
Keep building this topic
Read this section alongside the surrounding pages in Percentage Decrease. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Percentage Decrease
What multiplier is used to decrease a value by 35%?
A shop advertises '25% off everything'. A student says: 'The multiplier is 0.25 because 25% = 0.25.' Explain what is wrong with the student's reasoning and state the correct multiplier.
Quick Recall Flashcards
12 questions on Percentage Decrease — practise free
Instant marking, adaptive difficulty, and 22 spaced repetition flashcards. Free until your GCSEs.
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