The contribution margin ratio helps you understand how much profit a product brings after covering the costs that vary with production. You calculate it by subtracting variable costs from the product’s sales revenue.

Variable costs or COGS, are expenses that change depending on how many units you sell. These include things like materials, shipping and packaging. The leftover money after covering these costs is what helps pay for fixed expenses like rent and salaries and ultimately adds to your business’s overall profit. A higher contribution margin means more profit potential, giving you a clearer picture of which products are driving your business forward.

Understanding What Contribution Margin Means

The contribution margin is the amount left over after you subtract your variable expenses from your revenue. It’s a key measure because it shows how changes in costs can affect your profitability.

To calculate it, simply take your revenue and subtract your variable cost of goods sold (COGS). For example, if you make $1,000 in revenue and your variable expenses are $400, your contribution margin would be $600.

You can also calculate the Contribution Margin Ratio. To do this, take your contribution margin (in dollars) and divide it by your total revenue. This ratio helps you see what percentage of your revenue is left after covering variable costs. Most businesses, especially in manufacturing, aim for a contribution margin ratio of 60% or higher.

Several factors can impact your contribution margin, such as the selling price of products, the mix of items you sell, sales volume, waste, purchase prices and even foreign exchange rates. It’s important to keep these in mind and consistently calculate contribution margins for accurate financial tracking.

Simple Steps to Calculate Contribution Margin

Calculating your contribution margin is a straightforward way to understand how much profit your business is making after covering variable costs. The contribution margin shows the difference between your total revenue and the variable cost of goods sold (COGS), expressed as a dollar amount. Here’s the basic formula:

Contribution Margin Ratio Formula

Contribution Margin = Revenue – Variable COGS

For example, if your store generates $2,000 in sales and your variable costs (such as materials, packaging and shipping) add up to $800, your contribution margin would be $1,200. This $1,200 is what’s left to cover your fixed costs, like rent or salaries and eventually contribute to your profit.

An Easy Formula for Contribution Margin and Its Ratio

To get a clearer picture, you can calculate the Contribution Margin Percentage, also known as the Contribution Margin Ratio. This shows what percentage of your revenue is contributing to covering fixed costs and generating profit. The formula is:

Contribution Margin Percentage = (Contribution Margin ÷ Revenue) x 100

Using the previous example, if your contribution margin is $1,200 and your total revenue is $2,000, your contribution margin percentage would be 60%. This means 60% of your revenue goes toward covering fixed costs and profits, while the other 40% is used to cover variable expenses.

Understanding both the dollar figure and percentage helps you see how efficiently your business is operating. A higher contribution margin means more of your revenue is being directed toward profits, which is crucial for long-term growth.

A Straightforward Explanation of Contribution Margin

Contribution margin is a simple concept that helps you understand how much profit your business makes after covering variable costs. It’s calculated by taking your total revenue and subtracting the variable cost of goods sold (COGS). This tells you how much money is left over to cover fixed costs like rent, utilities and salaries and eventually contribute to your profits.

The Contribution Margin Percentage, also known as the Contribution Margin Ratio, shows the percentage of each dollar earned that’s available for covering fixed costs and generating profit. You can calculate it by dividing the contribution margin by your total revenue.

For example, let’s say you run a business that sells custom t-shirts. Your variable costs include things like fabric, ink and packaging—costs that increase with the number of t-shirts sold. If you sell 100 T-shirts, the variable costs will cover the materials for 100. If you sell 1,000 T-shirts, those costs will rise accordingly.

The key is that these variable costs fluctuate based on sales volume. As sales increase, these costs rise accordingly. By understanding your contribution margin and contribution margin percentage, you can better track how efficiently your business is turning sales into profit. This also helps you spot which products or services are most profitable and which ones may need adjusting to improve profitability.

Common Variable Costs in Retail and Manufacturing

In both retail and manufacturing businesses, variable costs are the expenses that change based on how much you sell or produce. These costs directly impact your Contribution Margin Ratio, as they fluctuate with sales volume.

For a buy-and-sell or merchant business, typical examples of variable costs of goods sold (COGS) include:

  • The cost of purchasing the products you sell
  • Freight costs to get those products into your inventory
  • Freight costs to deliver them to the customer (if necessary)

In a manufacturing business, the variable costs are quite similar, but they also include:

  • The essential materials required to manufacture your products
  • Freight to transport raw materials to your production facility
  • Freight to deliver finished products to your clients

These costs go up or down depending on how much product you sell or produce, making them a crucial factor in calculating your contribution margin and understanding how efficiently your business is generating profit.

Why Variable Costs Matter in Your Business?

Variable costs are expenses that change depending on the level of production or sales volume. These costs include things like raw materials and direct labour. Grasping variable costs is important for several reasons:

  1. Impact on Profitability: Variable costs directly affect your contribution margin, which is the difference between sales revenue and variable costs. The Contribution Margin Ratio helps you understand how much of your sales revenue is available to cover fixed costs and generate profit.
  2. Pricing Strategies: If you raise your prices or your supplier costs increase, your contribution margin will be affected. Knowing how variable costs fluctuate helps you adjust pricing strategies effectively.
  3. Product Mix Decisions: Different products have different variable costs. If you change your product mix, some products may contribute more to your profit than others. By analysing these costs, you can make informed decisions about which products to focus on for better profitability.

Important Benchmarks for Contribution Margin

Understanding contribution margin is key to assessing your business’s financial health. The Contribution Margin Ratio is a critical metric that shows how much of each sales dollar is available to cover fixed costs and generate profit. Here’s what to aim for:

  1. Manufacturing Businesses: Aiming for a contribution margin of around 60% or higher is a strong target. This indicates that a significant portion of your sales revenue is available to cover fixed costs and contribute to profit. When you exceed 60%, you’re likely performing very well.
  2. Buy-and-Sell or Merchant Businesses: For businesses that buy and sell finished goods, a slightly lower contribution margin is typical. Since you’re dealing with products that are already finished, your margin scheme might be lower compared to manufacturing businesses. However, it’s still important to ensure your contribution margin is high enough to cover costs and generate a profit.

What Affects Your Contribution Margin?

Your contribution margin—the percentage of sales revenue that exceeds variable costs—can be influenced by several key factors:

  1. Selling Price: The price at which you sell your products directly affects your contribution margin. Higher selling prices generally lead to a higher contribution margin, provided that the variable costs remain constant.
  2. Product Mix: The types of products you sell impact your margin. Certain products might yield higher profit margins than others. For instance, a corner shop selling Coca-Cola might have a different margin compared to a supermarket, which benefits from lower buying prices due to higher volume.
  3. Sales Volume: The amount of product you sell can influence your margin. Higher sales volumes often lead to better buying prices and economies of scale, improving your contribution margin.
  4. Variable Costs: These include costs like raw materials, waste and spoilage. Efficient management of these costs helps improve your contribution margin. For example, sourcing from a cost-effective supplier without compromising quality can boost your margin.
  5. Foreign Exchange Rates: If you import products, fluctuations in foreign exchange rates can affect your costs. A favourable exchange rate can enhance your contribution margin, while an unfavourable one can reduce it.

Key Info for Businesses Using Subcontractors

When managing a business that relies on subcontractors, it’s crucial to understand how these costs affect your contribution margin. Here’s what you need to know:

  • Variable Costs: In construction, subcontractor fees vary with the amount of work, affecting your Contribution Margin Ratio.
  • Fixed Costs: In other businesses, subcontractor fees may be a fixed amount, simplifying budgeting but not fluctuating with production.
  • Consistency in Calculation: Consistent calculation of subcontractor costs is crucial for accurate Contribution Margin Ratio and effective decision-making.

Conclusion

Calculating variable costs and Contribution Margin Ratio is essential for understanding your business’s profitability. By accurately tracking variable costs and using the Contribution Margin Ratio, you can make informed decisions about pricing, cost management and overall business strategy. This process helps not only assess financial health but also optimise profitability and operational efficiency. For more valuable insights and effective financial solutions, get in touch with us at SMG Accounting.