How to Calculate Marginal Revenue: Marginal Revenue Formula and How to Use It in practise

How to Calculate Marginal Revenue: The Components of Marginal Revenue Formula

As a business owner or entrepreneur, one of your most important goals is maximizing revenue. This can be done in multiple ways through increasing sales and cutting costs, but understanding marginal revenue is the prerequisite of your success. In simple words, marginal revenue is the additional revenue you earn from selling one more unit of a product or service. 

This article will help you calculate your marginal revenue and use it to make informed decisions about your business. Whether you’re a seasoned business owner or just starting out, we’ll provide you with the knowledge you need to maximize your revenue and achieve your business goals.

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Contents:

1. What is marginal revenue?

2. How to calculate marginal revenue

3. Why is marginal revenue important?

4. Common mistakes of marginal revenue calculation and how to avoid them

5. Taking your ecommerce business revenue to the next level with Synder Insights

What is marginal revenue?

Marginal revenue is the extra income a business gets from selling one more unit of a product or service. It’s like asking, “If I sell one more item, how much more money will I make?” This concept helps businesses decide how many products to make and at what price to sell them to maximize their profits.

In a broader way, marginal revenue isn’t about the total revenue a company earns but about the incremental or additional revenue generated from selling one extra unit. It focuses on the immediate financial benefit of increasing sales by a single unit.

Marginal revenue can vary depending on the number of units sold and the company’s pricing strategy. In competitive markets where a firm is a price taker, marginal revenue is typically constant and equal to the price of the product. However, in less competitive markets, like monopolies, the marginal revenue can decrease as the quantity sold increases due to the need to lower prices to sell more units.

Firms aim to produce up to the point where the marginal revenue of producing an additional unit equals the marginal cost of producing it. This is called the point of profit maximization.

For example, let’s say you sell T-shirts for $20 each. If you sell 100 T-shirts, your total revenue would be $2,000. If you sell one more T-shirt for $20, your total revenue will increase to $2,020. The marginal revenue earned from selling one more T-shirt is $20.

Knowing the marginal revenue helps businesses understand the value of each additional unit sold. 

How to calculate marginal revenue: Marginal revenue formula

Calculating marginal revenue involves understanding how changes in sales volume affect total revenue. 

1. Determine the initial total revenue. 

Calculate the total revenue before the change in quantity. Total revenue (TR) is calculated as the price per unit (P) multiplied by the quantity sold (Q). So, TR = P × Q.

2. Calculate the new total revenue. 

Calculate the new total revenue after the change in quantity (due to increased production, a change in pricing, or other factors). Again, use the formula TR = P × Q, but this time with the new values for price and quantity.

3. Find the change in total revenue. 

Subtract the initial total revenue from the new total revenue to find the change in total revenue. This is ΔTR (Delta TR), where Δ represents the change.

4. Determine the change in quantity sold.

Find out how many additional units were sold (or less, if quantity decreased). This is ΔQ, the change in quantity.

5. Calculate marginal revenue (MR)

Divide the change in total revenue (ΔTR) by the change in quantity sold (ΔQ). So, MR = ΔTR / ΔQ.

Marginal revenue formula

Marginal revenue example

Let’s create an example to illustrate marginal revenue for an ecommerce business selling t-shirts.

Assume the ecommerce business sells T-shirts online. The current selling price of each T-shirt is $20. The company sells an average of 100 T-shirts per day, generating a total revenue of $2,000 per day (100 T-shirts x $20 each).

To increase sales, the company decides to implement a marketing campaign. After the campaign, the sales increase to 110 T-shirts per day. However, to attract more customers, the price per T-shirt is reduced to $19.

Marginal revenue formula calculation

Before the campaign, total revenue was $2,000 per day (100 T-shirts x $20 each). After the campaign, total revenue is $2,090 per day (110 T-shirts x $19 each).

  • Change in total revenue: The change in total revenue is $2,090 – $2,000 = $90.
  • Change in quantity sold: The change in the quantity sold is 110 – 100 = 10 T-shirts.
  • Marginal revenue: Marginal revenue is the change in total revenue divided by the change in quantity sold. So, MR = $90 / 10 = $9.

The marginal revenue of $9 means that for each additional T-shirt sold, the company earns an additional $9 on top of its previous revenue. This information is crucial for the business as it helps understand whether the marketing campaign and price reduction are beneficial in terms of revenue per additional unit sold.

The company can use this information to decide whether to continue the marketing campaign or adjust the pricing strategy. Suppose the marginal cost of producing and selling each additional T-shirt is less than $9. In that case, the company is making a profit on each additional T-shirt sold, and it might be a good strategy to continue the campaign. The company may need to reassess its strategy if the marginal cost is higher.

marginal revenue chart

What does it mean if marginal revenue is negative?

If marginal revenue is negative, it means that the additional revenue generated from selling one more unit of a product is actually less than the revenue generated before selling that unit. In other words, each additional unit sold decreases the total revenue. This situation can occur in certain market conditions, especially where lowering the price to sell more units significantly impacts the overall revenue. Here are a few key points to understand:

  • Negative marginal revenue often occurs in scenarios where a company has to reduce its price significantly to sell additional units. This can happen in markets with high elasticity of demand, where the quantity demanded is highly sensitive to changes in price.
  • In markets that aren’t perfectly competitive, like monopolies or oligopolies, firms may face a downward-sloping demand curve. As they lower prices to sell more, the additional revenue from new sales may not be enough to offset the revenue lost due to the lower price on all the units sold. This leads to a decrease in total revenue.
  • Negative marginal revenue can indicate that a market is becoming saturated, meaning that the potential for revenue growth through increased sales volume is limited or declining. It can signal that the company is pushing sales beyond the optimal market demand for its product at its current price.
  • When a company faces negative marginal revenue, it’s a signal to reassess its pricing strategy and sales volume. Increasing production or sales in this scenario can lead to diminishing returns and potentially losses.
  • In terms of profit maximization, a negative marginal revenue suggests that the company has surpassed the optimal production level where marginal cost equals marginal revenue. To maximize profit, the firm should reduce its output until marginal revenue equals marginal cost again.

Why is marginal revenue important?

How to determine the optimal production level

Marginal revenue can also be used to make better production decisions. By understanding the marginal revenue, businesses can determine the level of production needed to maximize profits.

Businesses, once again, can use marginal revenue and marginal cost to determine the optimal level of production. The optimal level of production is where the marginal revenue equals the marginal cost.

For example, let’s say a business produces 100 cupcakes for $50 in total cost. If the marginal revenue for selling one more cupcake is $2 and the marginal cost of producing one more cupcake is $1, the optimal level of production would be to produce more cupcakes until the marginal revenue equals the marginal cost. In this case, the business would want to produce more cupcakes until the marginal revenue is $1.

Check out how data-driven insights can help you grow your business.

Pricing strategy

One of the main uses of marginal revenue is to determine the optimal pricing strategy for a business. By understanding the marginal revenue, businesses can identify the price point where they can maximize profits.

A business can use marginal revenue to determine the optimal price point by comparing it to the marginal cost. Marginal cost is the cost of producing one additional unit of a product or service. The optimal price point is where the marginal revenue equals the marginal cost.

For example, a business sells cupcakes for $2 each. If the marginal cost of producing one more cupcake is $1, then the optimal price point will be where the marginal revenue equals $1. If the business sells a cupcake for $2 and the marginal cost is $1, the marginal revenue will be $1. If the business lowers the price to $1.50, the marginal revenue will be $0.50. This means that the business will need to sell more cupcakes to make up for the decrease in price.

Marketing strategy

Marginal revenue can also be used to improve marketing strategies. By understanding the marginal revenue, businesses can identify the most profitable products and services to promote.

For example, let’s say a business sells t-shirts and hats. If the marginal revenue for selling one more t-shirt is $20 and the marginal revenue for selling one more hat is $10, the business should focus its marketing efforts on promoting t-shirts. 

The business can maximize its profits by focusing on the product with the higher marginal revenue. This way, you can make sure you advertise popular products and achieve better ROAS.

Looking to increase your sales? Check out which marketing strategies will help you make the most of your products.

Profit maximization

The core of many business strategies is maximizing profit, and understanding marginal revenue is key to this. Businesses aim to produce and sell up to the point where the cost of producing one more unit (marginal cost) equals the revenue it’ll bring in (marginal revenue). This point is where profits are highest, as any additional production would add more to costs than to revenues.

Forecasting and planning

Marginal revenue is a critical component in financial forecasting and strategic planning. It helps businesses project future revenues and understand how changes in production or market conditions might affect these revenues. This understanding is essential for long-term planning, budgeting, and making strategic decisions about investments and growth.

Adapting to consumer demand

In today’s rapidly changing markets, understanding how shifts in consumer demand affect marginal revenue helps businesses stay competitive. It allows companies to quickly adapt their production and pricing strategies in response to changing consumer preferences, economic conditions, or competitor actions, ensuring they remain aligned with market demands.

Common mistakes of marginal revenue calculation and how to avoid them

When calculating marginal revenue, several common mistakes can lead to inaccurate results or misinterpretations. Here are some of these mistakes and tips on how to avoid them:

Confusing total and marginal revenue

Mistake: Assuming that total revenue and marginal revenue are the same or directly proportional.

How to avoid: Remember that marginal revenue refers to the revenue from selling one additional unit, not the total revenue from all units sold. It’s the incremental revenue, not the cumulative total.

Ignoring the context of the market

Mistake: Not considering the type of market (e.g., perfect competition, monopoly) when interpreting marginal revenue.

How to avoid: Understand the market structure in which the business operates. In perfect competition, marginal revenue equals the price, but in imperfect markets, it varies with each additional unit sold.

Overlooking price changes

Mistake: Calculating marginal revenue without accounting for changes in price that can affect demand.

How to avoid: Take into account how price changes influence the quantity demanded and, consequently, the revenue generated from selling additional units.

Incorrectly calculating changes in revenue and quantity

Mistake: Miscalculating the change in total revenue (ΔTR) or the change in quantity (ΔQ).

How to avoid: Ensure accuracy in determining both the initial and new total revenue, as well as the initial and new quantities, before calculating their respective changes.

Using averages instead of marginals

Mistake: Using average revenue instead of marginal revenue.

How to avoid: Distinguish between average revenue (total revenue divided by quantity) and marginal revenue (change in revenue divided by change in quantity).

Neglecting non-linear relationships

Mistake: Assuming a linear relationship between quantity and revenue in all cases.

How to avoid: Recognize that in many real-world situations, the relationship between quantity sold and revenue isn’t linear, especially in imperfectly competitive markets.

Misinterpreting negative marginal revenue

Mistake: Assuming that negative marginal revenue always indicates a loss.

How to avoid: Understand that negative marginal revenue indicates a decrease in total revenue with the sale of additional units, but this doesn’t necessarily mean the company is making a loss. It’s a signal to reassess pricing and output strategies.

Ignoring marginal costs

Mistake: Focusing solely on marginal revenue without considering marginal costs.

How to avoid: Always consider marginal costs in conjunction with marginal revenue for decision-making, as the intersection of these two is crucial for determining profit maximization.

Taking your ecommerce business revenue to the next level with Synder Insights

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Synder Insights is an automated analytics tool that provides you with real-time data on a single dashboard so that you can draw insights from one source of truth and make better decisions about your ecommerce business. Connect all your sales and payment channels and get access to actionable KPI reports on your revenue, product and customer performance. 

With Synder Insights, you’ll know your revenue at any moment. You’ll be able to break down the reports by channel time period, and customize it to your needs. The tool will also allow you to find new ways of increasing revenue with product bundling, spot seasonal trends, understand your customers better, and much more.

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Wrapping up marginal revenue: Importance of total revenue and quantity sold 

Maximizing revenue is a top priority for businesses. By understanding marginal revenue, businesses can make informed decisions about pricing, production, and marketing strategies. 

Calculating marginal revenue is a simple process once you know the formula. By using the relationship between marginal revenue and marginal cost, businesses can determine the optimal price point and level of production needed to maximize profits. What’s more, with the marginal revenue analysis, businesses can focus on promoting the most profitable products and services. 

Using the right analytics software will help you keep tabs on the most important KPIs for your business and ensure your revenue is always controlled. By drawing insights from your performance and incorporating marginal revenue analysis into your business strategy, you’ll take your business to the next level and maximize profits.

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