As a business owner, you‘re likely already tracking a variety of financial metrics – revenue, expenses, profit margin, cash flow, and more. But there‘s one crucial number that often gets overlooked, even though it‘s essential for making smart pricing and production decisions: contribution margin.
Contribution margin is a key metric that shows you how much each product or service you sell contributes to covering your fixed costs and generating profit. Yet according to a survey by the pricing consulting firm PriceBeam, only 37% of companies regularly track and leverage contribution margin for informing pricing decisions.
In this guide, we‘ll dive deep into what exactly contribution margin is, how to calculate it, and most importantly, how you can start using it to boost your profitability.
Contribution Margin Explained in 200 Words (& How to Calculate It)
Here‘s a simple way to think about contribution margin:
Imagine you own a bakery. For every cupcake you sell, you have certain variable costs – the ingredients you use (flour, sugar, eggs, etc.), the paper liner and box, and the labor cost for your employees to bake and frost that cupcake.
Let‘s say your variable cost per cupcake is $1.50. If you sell that cupcake for $3.50, the leftover $2.00 is your contribution margin. That‘s the money you have left from that sale to put toward covering your fixed costs (like rent and equipment) and generating profit.
Expressed as a formula, here‘s how you calculate contribution margin:
Contribution Margin = Revenue – Variable Costs
And to calculate contribution margin as a percentage of revenue (known as the contribution margin ratio), simply divide the contribution margin by revenue:
Contribution Margin Ratio = (Revenue – Variable Costs) / Revenue
So in this cupcake example, the contribution margin ratio would be:
($3.50 – $1.50) / $3.50 = 0.571 or 57.1%
This means that for every cupcake sold, 57.1% of the revenue goes toward covering fixed costs and profit. The higher the contribution margin ratio, the more profitable that product is.
Why Is Contribution Margin Important?
Hopefully that basic example makes the concept of contribution margin a bit clearer – but you might still be wondering, why should I care? What does this number actually tell me?
Simply put, understanding and tracking contribution margin is incredibly valuable for making all kinds of business decisions, especially when it comes to:

Pricing your products profitably: By looking at the contribution margin for each product or service you sell, you can ensure your prices are high enough to not only cover your variable costs but also leave enough leftover to cover your fixed costs and generate a profit. If a product has a low or negative contribution margin, it may be a sign you need to raise prices.

Focusing on your most profitable offerings: Calculating the contribution margin ratio for all your products allows you to easily compare their profitability and identify which ones are your true "money makers." You may find that even though a product brings in a lot of revenue, it has a low contribution margin ratio because of high variable costs. Knowing this, you can make strategic decisions about which products to prioritize or even discontinue.

Planning your sales mix: Contribution margin is essential for finding the ideal mix of products to sell in order to hit your profit targets. By looking at each product‘s contribution margin ratio and sales volume, you can calculate how many units of each product you need to sell to cover your total fixed costs and achieve your desired profit.

Identifying improvement opportunities: Regularly tracking contribution margin helps you spot trends and changes. If you see contribution margin decreasing for a product, you can dig in to determine if it‘s due to rising variable costs, declining prices, or both – and take action to correct it.
The power of contribution margin lies in the fact that it directly ties your productlevel financials to your overall profitability. By understanding this critical link, you can make smarter, more strategic decisions to drive your business forward.
Contribution Margin in Action: A Case Study
To really drive home the value of contribution margin, let‘s look at how it can be applied to a real business scenario. We‘ll return to our fictional bakery, Carrie‘s Cupcakes.
Carrie currently sells three products: regular cupcakes, glutenfree cupcakes, and large donuts. Here‘s a breakdown of the key numbers for each:
Product  Price per Unit  Variable Cost per Unit  Contribution Margin  Contribution Margin Ratio 

Regular Cupcake  $3.50  $1.50  $2.00  57.1% 
GlutenFree Cupcake  $4.00  $2.00  $2.00  50% 
Jumbo Donut  $2.50  $1.00  $1.50  60% 
At first glance, it might seem like the glutenfree cupcakes are the most profitable since they have the highest price. But when you calculate the contribution margin ratio, a different story emerges.
While the regular and glutenfree cupcakes have the same contribution margin in absolute dollars, the glutenfree ones have a lower contribution margin ratio due to their higher variable costs. The jumbo donuts, despite having a lower price and contribution margin per unit, actually have the highest contribution margin ratio at 60%.
So what can Carrie do with this information? A few potential actions:
 Promote the jumbo donuts more heavily since they are the most profitable product
 Look for ways to reduce the variable costs for the glutenfree cupcakes to improve their contribution margin ratio
 Consider raising prices on the regular cupcakes, since a 57.1% contribution margin ratio leaves room for a price increase (the exact amount would depend on Carrie‘s fixed costs and profit targets)
 If one product has a significantly lower contribution margin ratio, consider discontinuing it to focus on the more profitable items
Of course, Carrie would also need to factor in other considerations like sales volume, customer demand, and her overall brand strategy. But by starting with contribution margin analysis, she‘s armed with data to make informed decisions.
Contribution Margin vs. Gross Margin vs. Operating Margin
At this point, you might be thinking that contribution margin sounds a lot like other financial metrics you‘re familiar with, namely gross margin and operating margin. While they‘re all measures of profitability, there are some key differences:

Gross Margin looks at total revenue minus cost of goods sold (COGS). COGS includes both variable costs and certain fixed costs directly related to production (like machinery). Gross margin is usually expressed as a percentage of revenue.

Operating Margin takes gross margin a step further by also subtracting selling, general, and administrative (SG&A) expenses. This gives you the profit left over after accounting for all operating costs, both variable and fixed. Like gross margin, it‘s usually shown as a percentage of revenue.

Contribution Margin, as we‘ve seen, looks specifically at revenue minus variable costs for an individual product. It tells you how much each unit sold contributes to covering fixed costs and achieving profit.
So while gross margin and operating margin are helpful for understanding your overall business profitability, contribution margin lets you zero in on productlevel profitability and make more strategic decisions.
Using Contribution Margin to Set Prices
One of the most powerful applications of contribution margin is using it to inform your pricing strategy. By understanding the contribution margin of each product and how much you need to cover your fixed costs and reach your profit goals, you can set prices more strategically.
Here‘s a simple framework for using contribution margin in pricing:

Calculate your total fixed costs: Add up all the costs that don‘t change with sales volume, like rent, equipment leases, salaries, etc. Let‘s say for our bakery example, fixed costs are $10,000 per month.

Set a profit goal: Decide how much profit you want to generate each month. For this example, let‘s target $2,000 in monthly profit.

Determine your necessary total contribution margin: Add your fixed costs and profit goal together. In this case, $10,000 + $2,000 = $12,000. This is the total amount of contribution margin you need to cover your fixed costs and hit your profit target.

Estimate your sales mix: Look at your sales data to estimate what percent of total sales come from each product. Let‘s say Carrie expects to sell 50% regular cupcakes, 20% glutenfree cupcakes, and 30% jumbo donuts.

Calculate the weighted average contribution margin: Multiply each product‘s contribution margin by its percent of total sales, then add those numbers together. This gives you the average contribution margin per unit sold. In this example:
 Regular cupcakes: $2.00 x 50% = $1.00
 Glutenfree cupcakes: $2.00 x 20% = $0.40
 Jumbo donuts: $1.50 x 30% = $0.45
 Total weighted average contribution margin = $1.00 + $0.40 + $0.45 = $1.85

Find your breakeven point: Divide your necessary total contribution margin by the weighted average contribution margin. This tells you how many total units you need to sell to break even. In our example, $12,000 / $1.85 = 6,486 units.

Determine your price: Look at the contribution margin ratio for each product and compare it to the weighted average. If a product‘s ratio is lower than average, you may need to raise its price to achieve your overall profit goal. You can play with different price points to see how they impact the weighted average and total units needed to break even.
This process allows you to set prices based on your actual costs and profit goals, rather than just guessing or matching competitors. It takes the guesswork out of pricing and ensures each product is pulling its weight in terms of profitability.
Of course, you‘ll also need to consider what the market will bear and what your competitors are charging. But starting with a contribution marginbased approach gives you a solid foundation to work from.
The Limitations of Contribution Margin
As valuable as contribution margin analysis can be, it‘s important to understand its limitations. No single metric can give you the full picture of your business‘s financial health.
Some key things to keep in mind:

It doesn‘t account for all costs: Because contribution margin only considers variable costs, it doesn‘t give you a complete profitability picture on its own. You still need to factor in your fixed costs to understand your bottom line.

It assumes linear variable costs: The contribution margin calculation assumes your variable costs stay constant per unit no matter how many units you produce. In reality, you may have certain variable costs that change with volume, like volume discounts on materials. At very high volumes, you may also reach a point where you need to invest in more equipment or labor, causing your fixed costs to increase.

It‘s not the whole story: While contribution margin is a crucial metric, it shouldn‘t be the only factor in your decision making. You also need to consider things like your overall brand strategy, customer demand, competitive landscape, and longterm business goals. In some cases, it may make sense to keep a low contribution margin product if it‘s important for customer acquisition or loyalty.
So while contribution margin is an essential tool to have in your toolbox, it‘s not a magic bullet. Use it as one key data point in your decision making, but always consider the bigger picture.
Putting It All Together
We‘ve covered a lot of ground in this guide, from the basics of what contribution margin is and how to calculate it to its applications in pricing, product strategy, and profitability analysis. But if there‘s one key takeaway, it‘s this:
Contribution margin is a powerful metric that every business owner should understand and regularly track.
By zeroing in on the profitability of individual products or services, contribution margin allows you to make datadriven decisions about where to focus your efforts and how to optimize your pricing. It helps you understand, at a granular level, what‘s driving (or hurting) your bottom line.
But as with any metric, contribution margin is most useful when it‘s looked at in context and over time. Regular contribution margin analysis can help you spot trends, identify issues, and find opportunities for improvement. Pair it with other key financial metrics, and use it to inform your strategy – not dictate it.
If you‘re not already tracking contribution margin in your business, start now. Begin by gathering the necessary data (revenue and variable costs for each product), then do the calculations laid out in this guide. Use that information to take a fresh look at your pricing, product mix, and profitability.
Then, make contribution margin tracking a regular part of your financial review process. Set up a spreadsheet to automatically calculate it from your sales and cost data, and review it at least monthly. Share the insights with your team, and use them to drive strategic discussions and decisions.
With contribution margin as a goto metric, you‘ll be well on your way to greater profitability and smarter, more confident decision making.