The meaning of profit margins

Profit margins indicate how effectively a business turns sales into profit by showing what happens to each pound of customer spending. There are two main types: gross profit margin and net profit margin.

Types of profit margins

• Gross profit margin - This measures the portion of each pound of sales revenue that remains after subtracting the direct costs of producing goods or services. It ignores indirect costs.
• Net profit margin - This measures the portion of each pound of sales revenue that the business retains as profit after all costs, both direct and indirect, have been deducted.

Calculating gross profit margin

Gross profit margin is calculated using figures from a business's income statement. It shows the percentage of sales revenue left after covering the cost of sales.

Formula for gross profit margin

$\text{Gross profit margin}=\frac{\text{gross profit}}{\text{sales revenue}}\times 100$

Where:

• Gross profit = Sales revenue minus cost of sales (£)
• Sales revenue = Total income from sales (£)

For every £1 of customer spending, the gross profit margin reveals how much is available to cover indirect costs, with the rest going towards direct production costs.

Steps to calculate gross profit margin:

1. Identify gross profit and sales revenue from the income statement.
2. Divide gross profit by sales revenue.
3. Multiply the result by 100 to express it as a percentage.

---

Worked example - Calculating gross profit margin

A business has a gross profit of £70,000 and sales revenue of £200,000. Calculate the gross profit margin.

Step 1: Identify the values

• Gross profit = £70,000
• Sales revenue = £200,000

Step 2: Apply the formula

$\text{Gross profit margin}=\frac{\pounds \mathrm{70,000}}{\pounds \mathrm{200,000}}\times 100$

Step 3: Calculate the result

$\text{Gross profit margin}=0.35\times 100=35\%$

Step 4: Interpretation

This means that for every £1 of sales, 35p is left after direct costs to cover indirect expenses.

Ways to improve gross profit margin

What is considered a good gross profit margin varies by industry. For example, high-volume businesses like supermarkets often have low margins due to competitive pricing. Higher gross profit margins are generally preferable.

Strategies to increase gross profit margin:

• Raising prices - Increasing the selling price without raising costs can boost the margin.
• Reducing direct costs - Negotiating better deals with suppliers or improving production efficiency lowers the cost of sales.
• Volume considerations - Businesses with low margins can compensate by selling large quantities.

Calculating net profit margin

Net profit margin provides a complete picture of profitability by accounting for all costs. It is also derived from the income statement.

Formula for net profit margin

$\text{Net profit margin}=\frac{\text{net profit}}{\text{sales revenue}}\times 100$

Where:

• Net profit = Gross profit minus all indirect costs (£)
• Sales revenue = Total income from sales (£)

This margin shows how much of every £1 in sales the business keeps as profit after all expenses.

Steps to calculate net profit margin:

1. Identify net profit and sales revenue from the income statement.
2. Divide net profit by sales revenue.
3. Multiply the result by 100 to express it as a percentage.

---

Worked example - Calculating net profit margin

A company reports a net profit of £32,000 and sales revenue of £160,000. Calculate the net profit margin.

Step 1: Identify the values

• Net profit = £32,000
• Sales revenue = £160,000

Step 2: Apply the formula

$\text{Net profit margin}=\frac{\pounds \mathrm{32,000}}{\pounds \mathrm{160,000}}\times 100$

Step 3: Calculate the result

$\text{Net profit margin}=0.20\times 100=20\%$

Step 4: Interpretation

This indicates that for every £1 of sales, the business retains 20p as net profit after all costs.

Factors affecting net profit margin

A good net profit margin depends on the business type, with higher margins typically seen as better.

Influences on net profit margin:

• Business size and growth - Small or new businesses often have higher net profit margins due to lower indirect costs. As businesses expand, indirect costs increase, which can reduce the margin.
• Industry norms - Some sectors naturally have lower margins due to high competition or cost structures.