NumberDiagram

Common Percentage Calculations

Part of PercentagesGCSE Mathematics

This diagram covers Common Percentage Calculations within Percentages for GCSE Mathematics. Revise Percentages in Number for GCSE Mathematics with 14 exam-style questions and 22 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 7 of 15 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 7 of 15

Practice

14 questions

Recall

22 flashcards

Common Percentage Calculations

VAT (20%)

Price + VAT: × 1.2
£50 + VAT = £50 × 1.2 = £60
Find VAT amount: × 0.2

Discount

25% off: × 0.75
£80 with 25% off = £80 × 0.75 = £60
Amount saved: × 0.25

Profit/Loss

Profit % = (Profit/Cost) × 100
Buy £40, sell £50
Profit = £10, = 25%

Keep building this topic

Read this section alongside the surrounding pages in Percentages. That gives you the full topic sequence instead of a single isolated revision point.

Practice Questions for Percentages

Which calculation correctly finds 35% of £240 using the decimal method?

  • A. 240 ÷ 35
  • B. 240 × 3.5
  • C. 240 × 0.35
  • D. 35 ÷ 240
1 markfoundation

Which formula correctly expresses one quantity as a percentage of another?

  • A. (part ÷ whole) × 100
  • B. (whole ÷ part) × 100
  • C. (part × whole) ÷ 100
  • D. (whole − part) × 100
1 markfoundation

Quick Recall Flashcards

What is a percentage?
Parts per hundred Percent = per cent = per 100 % symbol means 'out of 100' 50% = 50/100 = half
Percentage to decimal
Divide by 100 75% = 0.75 8% = 0.08 150% = 1.5 Move decimal point 2 places left

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