Business Calculations (Edexcel GCSE Business): Revision Note

Exam code: 1BS0

Lisa Eades

Written by: Lisa Eades

Reviewed by: Jenna Quinn

Updated on

Profit calculations

  • Profit is the reward for the risk that entrepreneurs take in proving a product/service 

  • The two main types of profit are gross profit and net profit
     

  • Gross profit takes into account the expenses directly incurred in the cost of production and is calculated as follows 

Gross profit = Sales revenue  Cost of sales

  • Net profit takes into account all of the business expenses and is calculated as follows

 Net profit = Gross profit  (Operating expenses + Interest)

Worked Example

A small skateboard manufacturer sells its products to retailers for £35 per unit. Variable costs are 2/5ths of the selling price, with monthly fixed costs being £4,200. It sells 1,200 skateboards a month. 

Calculate the business's net profit for the year.

(4)

Step 1: Calculate the variable cost per unit

=  of £35=£14                   (1)

Step 2: Calculate the gross profit per unit

= £35  £14= £21        

Step 3: Calculate the gross profit per month (gross profit per unit x units sold)

= £21  ×  1,200= £25,200 

Step 4: Calculate the gross profit per year

= £25,200  ×  12= £302,400       (1)

Step 5: Calculate the annual fixed costs

= £4,200  ×  12= £50,400       (1)

Step 6: Subtract fixed costs from gross profit

= £302,400  £50,400= £252,000 (1)

Examiner Tips and Tricks

You may not be asked to complete all of these calculations in one question. The question may, for example, provide the gross profit and some other information and then ask you to calculate the net profit.

Look at the data carefully to ensure you are doing the correct calculation.

Profit margins

  • A profit margin is the amount by which sales revenue exceeds the costs

    • Profit margins can be calculated for each type of profit (gross, operating and net profit)

  • Profit margins can be compared to previous years to better understand business performance

    • Higher and increasing profit margins are preferable, as it means that more revenue is being converted to profit

Gross profit margin 

  • This shows the proportion of revenue that is turned into gross profit and is expressed as a percentage

    • It is calculated using the formula

 Gross profit margin = Gross profitSales revenue× 100      

  • Gross profit margin shows the proportion of revenue left over after the business has paid for its costs of sales

  • A business that adds a lot of value would be expected to have a high gross profit margin

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)

Step 1: Substitute the values into the formula

      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 shows the proportion of revenue that is turned into net profit before tax and is expressed as a percentage

  • It is calculated using the formula

Net profit margin = Profit for the yearSales revenue×100 

  • Net profit margin is the proportion of revenue left over after the business has paid all of its costs

  • A business such as Tesco would have a low net profit margin due to the competitiveness of the grocery market

    • However if sales are high, this could still generate significant total profits

  • A business with high net profit margins may have low total profits if sales are low

Worked Example

Head to Toe Wellbeing’s revenue in 2022 was £124,653. Its net profit for the year was £57,596.

Calculate Head to Toe Wellbeing Ltd’s Net Profit Margin in 2022.

(2)

Step 1: Substitute the values into the formula

Net Profit Sales revenue×100= £57,596£124,653 = 0.4621        (1 )

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

= 0.4621 × 100= 46.21%               (1 )

  • 46.21% of Head to Toe Wellbeing’s revenue was converted into profit for the year

The average rate of return (ARR)

  • The average rate of return (ARR) measures the profit from a proposed capital project

  • ARR is used when a decision is required about which of two projects should be pursued in order to generate the most profit

    • E.g. A business may calculate the ARR of extending a factory and compare this with the ARR of purchasing new machinery

    • They can then make a judgement about which project they should go ahead with

  • The average rate of return is expressed as a percentage and is calculated using the formula

ARR = average annual profit (total profit / no. of years)iInitial outlay       ×         100      

Worked Example

The table below contains information about a new piece of machinery that a business wants to buy

Average annual profit

£200,000

Cost of the machinery

£475,000

Calculate the average rate of return, You are advised to show your workings.

(2)

Step 1: Insert the values into the formula

ARR = average annual profit initial outlay       ×         100 = £200,000 £475,000      = 0.42 (1)

Step 2: Multiply by 100 to get a percentage

= 0.42 × 100  = 42%                   (1)

 Advantages and disadvantages of using the average rate of return (ARR)

Advantages

Disadvantages

  • It considers all of the net cash flows generated by an investment over time

  • It is easy to understand and compare the percentage returns with each other

  • As it depends on an average of cash flows, it ignores the timing of those cash flows 

  • The opportunity cost of the investment is ignored 

Sales revenue calculations

  • Sales volume is the number of products sold i.e the physical number of units sold

  • Sales revenue = price x quantity sold i.e the financial value of the units sold

  • The market share that a business enjoys is the proportion of the total sales revenue of a product/service compared to the market as a whole e.g. Tesco has 26% of the UK grocery market

  • Market Share can be calculated as follows

Sales revenue of a businessTotal sales revenue in the market × 100 

  • If a business sells multiple items, the percentage that each item contributes to its overall sales revenue can be calculated using the following formula

Sales revenue of product XTotal sales revenue of all products  × 100

Worked Example

In 2019 a business sold three products, X, Y and Z. Table 1 shows the sales revenue generated for each of these products.

Table 1

Product

Contribution to Sales Revenue (£'s)

 X

300,000

Y

100,000

Z

600,000

Using the information in Table 1, calculate, to 2 decimal places, the percentage of total sales revenue made by product X in 2019. You are advised to show your workings.

(2)

Step 1: Identify annual sales of product x in 2019

  • £300,000 

Step 2: Substitute figures into the formula

Sales revenue of product XTotal sales revenue of all products  × 100= £300,000£1000,000 × 100= 30 % (2)

Worked Example

Table 2 contains information about the price of a Toyota Rav 4 car between 2016 and 2018.

Year

Price (£'s)

2016

32,000

2017

29,000

2018

26,500

(a) Using the information in Table 2, calculate the percentage reduction in the price of a Toyota Rav 4 car between 2016 and 2018.

(2)

Step 1: State the formula to calculate a percentage change

 Percentage change = New value  Old valueOld value x 100

Step 2: Substitute figures into the formula

 Percentage change = 26,500 32,00032,000 x 100=  5,50032,000  x 100= 17.12% (2) 

(b) Using the information in Table 2, calculate the average price of a Toyota Rav 4 car over the three year period between 2016 and 2018. 

(2)

Step 1: State the formula to calculate an average

Average price = Sum of all pricesNumber of price points 

Step 1: Insert values into an average formula

 = 32,000 + 29,000 + 26,5003= 87,5003  = £29,166. 67 (2) 

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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.

Jenna Quinn

Reviewer: Jenna Quinn

Expertise: Content Creator

Jenna studied at Cardiff University before training to become a science teacher at the University of Bath specialising in Biology (although she loves teaching all three sciences at GCSE level!). Teaching is her passion, and with 10 years experience teaching across a wide range of specifications – from GCSE and A Level Biology in the UK to IGCSE and IB Biology internationally – she knows what is required to pass those Biology exams.