Profitability Ratios (OCR GCSE Business): Revision Note

Exam code: J204

Lisa Eades

Written by: Lisa Eades

Reviewed by: Steve Vorster

Updated on

An introduction to profit margins

  • Profit margins measure how successfully a business converts revenue into profit

  • Profit margins are expressed as percentages

    • This allows comparison of business performance over time and also comparisons with other businesses

Gross profit margin

  • The gross profit margin is the proportion of revenue that is converted into gross profit

  • It is calculated using the formula

Gross profit margin = Gross profitRevenue x 100

Worked Example

Head to Toe Wellbeing’s revenue in 2022 was £124,653. Its gross profit was £105,731

Calculate Head to Toe Wellbeing Ltd’s gross profit margin in 2022. [2 marks]

 Step 1: Substitute the values into the formula

Gross profit = Gross profit Sales revenue × 100   

= £105,731 £124,653 =  0.8482  [1]

Step 2: Multiply the outcome by 100 to find the percentage

= 0.8482 × 100= 84.82%      [1]

84.82% of Head to Toe Wellbeing’s revenue was converted into gross profit during 2022.

Net profit margin

  • The net profit margin is the proportion of revenue that is converted into net profit

  • It is calculated using the formula

Net profit margin = Net profitRevenue x 100

Worked Example

Head to Toe Wellbeing’s revenue in 2022 was £124,653. Its net profit was £65,864

Calculate Head to Toe Wellbeing Ltd’s net profit margin in 2022. [2 marks]

Step 1: Substitute the values into the formula

Net Profit Margin = Net ProfitRevenue×100

= £65,864£124,653= 0.5284 [1]

Step 2: Multiply the outcome by 100 to find the percentage

= 0.5284 × 100= 52.84%  [1]

In 2022, 52.84% of Head to Toe Wellbeing’s revenue was converted into net profit.

Examiner Tips and Tricks

When you answer calculation questions, remember:

  • Take care that your figures are easily recognisable

    • In some cases, the number 4 and the number 9 could be confused by the examiner

  • Check the number of decimal places or significant figures required

    • If you only give  your answer to one decimal place rather than two, you will lose a mark, even if your answer is correct

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Lisa Eades

Author: Lisa Eades

Expertise: Curriculum Expert

Lisa has taught A Level, GCSE, BTEC and IBDP Business for over 20 years and is a senior Examiner for Edexcel. Lisa has been a successful Head of Department in Kent and has offered private Business tuition to students across the UK. Lisa loves to create imaginative and accessible resources which engage learners and build their passion for the subject.

Steve Vorster

Reviewer: Steve Vorster

Expertise: Content Creator

Steve has taught A Level, GCSE, IGCSE Business and Economics - as well as IBDP Economics and Business Management. He is an IBDP Examiner and IGCSE textbook author. His students regularly achieve 90-100% in their final exams. Steve has been the Assistant Head of Sixth Form for a school in Devon, and Head of Economics at the world's largest International school in Singapore. He loves to create resources which speed up student learning and are easily accessible by all.