# How to Measure Cost Behavior: 5 Common Methods

Telephone bills typically consist of fixed components, such as line rental and fixed subscription fees, and variable costs billed on a minute-by-minute basis or on the grounds of line usage. These costs are directly related to the capacity and services provided by the organization. To calculate variable costs, multiply the number of items produced by the unit price to get the total cost. Any pricing data outside of this range is irrelevant and need not be considered.

• Therefore, the management could exercise and control expenses more effectively and increase the profit margin due to this concept’s effective application.
• He is the sole author of all the materials on AccountingCoach.com.
• It is a very important concept in cost accounting, very helpful in determining fixed and variable costs related to products, machines, etc.
• Once that sales level has been reached, however, this type of business generally has a relatively low variable cost per unit.
• The continuing costs of having capacity incurred in anticipation of future activity are termed as “capacity costs.” In case capacity is utilized, additional costs are incurred.

The higher the level of production, the lower the per unit rate will be because a fixed amount of money is being spread out among more units. Cost behavior refers to the relationship between total costs and activity level. Based on behavior, costs are categorized as either fixed, variable or mixed. Fixed costs are constant regardless of activity level, variable costs change proportionately with output and mixed costs are a combination of both. Mixed costs refer to expenses that include both fixed and variable costs. Typically, mixed costs arise when your small business incurs a fixed flat charge plus an additional activity-based fee.

## Mixed costs

In our planning and decision making calculations, we assume that the variable rate stays the same. Because the rate stays the same, the cost will increase by the amount of the rate for each additional unit of activity. If the production level increases, the variable cost’s proportion will increase at the same rate. The interplay between all of the different costs emphasizes the importance of good planning. The trick is to synchronize operations so that the benefits of each fixed cost are maximized, and variable cost patterns are established in the most economic position.

Certainly there are countless stories of businesses that struggled to survive their infancy, but went on to become highly successful. But, it is equally important to identify business models that simply will not work. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike License . If you’ve ever flown on an airplane, there’s a good chance you know Boeing. The Boeing Company generates around \$90 billion each year from selling thousands of airplanes to commercial and military customers around the world. It employs around 200,000 people, and it’s indirectly responsible for more than a million jobs through its suppliers, contractors, regulators, and others.

Fixed costs can be spread over larger production runs, and this causes a decrease in the per unit fixed cost. In addition, enhanced buying power results (e.g., quantity discounts) as volume goes up, and this can reduce the per unit variable cost. These are valid considerations and must be taken into consideration in any business evaluation. However, care must also be exercised to limit one’s analysis to a “relevant range” of activity.

The fixed cost is calculated by subtracting the product of the variable cost per unit and the activity level from the total cost at either the high or low level. Cost behavior analysis refers to management’s attempt to understand how operating costs change in relation to a change in an organization’s level of activity. These costs may include direct materials, direct labor, and overhead costs that are incurred from developing a product. Management typically performs cost behavior analysis through mathematical cost functions. It takes more than materials for Carolina Yachts to build a boat. It requires the application of labor to the raw materials and component parts.

## Further Cost Analysis Techniques

Committed fixed costs are important because they cannot be avoided in lean times; discretionary fixed costs can be altered with proper planning. At right is a table that reveals rising chip costs with increases in production. For example, \$1,650,000 is spent when 150,000 units are produced (150,000 X \$11). The company should calculate the variable cost of its products and compare them with competitors that produce the same product. This calculation helps the company determine if it needs to reduce its variable costs further. Will the per unit rate for fixed manufacturing overhead be the same if we produce 12,000 units instead of 10,000 units?

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You’ve also learned that direct labor is the work of the employees who are directly involved in the production of goods or services. In fact, for many industries, the largest cost incurred in the production process is labor. For Carolina Yachts, their direct labor would include the wages paid to the carpenters, painters, electricians, and welders who build the boats.

## Variable cost

In that case, it is beneficial to understand the different types of cost behavior to develop a stable cost structure and find the best path to profitability. 8 types of risk and risk management investment Cost behavior indicates how a cost will change when an activity changes. Understanding cost behavior is also essential for cost-volume-benefit analysis.

Revisiting Tony’s T-Shirts, Figure 2.16 shows how the variable cost of ink behaves as the level of activity changes. It is important to remember that even though Tony’s costs stepped up when he exceeded his original capacity (relevant range), the behavior of the costs did not change. His fixed costs still remained fixed in total and his total variable cost rose as the number of T-shirts he produced rose. Table 2.6 summarizes how costs behave within their relevant ranges. Variable costs change in direct proportion to the level of production. This means that the total variable cost increase when more units are produced and decreases when fewer units are produced.

Say your crochet company has a contract with a shipping company to transport its blankets. For this service, you pay a fixed cost of \$75 per month plus a variable cost of \$5 for every shipment you send, regardless of how many packages you submit for transport to customers. This means your crochet company incurs mixed costs for delivery of its blankets. Cost functions are descriptions of how a cost (e.g., material, labor, or overhead) changes with changes in the level of activity relating to that cost. For example, total variable costs will change in relation to increased activity, while fixed costs will remain the same. Unlike fixed costs that remain fixed in total but change on a per-unit basis, variable costs remain the same per unit, but change in total relative to the level of activity in the business.

Examples of other fixed costs are insurance, depreciation, and property taxes. The average variable cost will be \$70.00 per person per day, no matter how many people go on the trip. However, the total variable costs will range from \$70.00, if Pat goes alone, to \$350.00, if five people go. Figure 2.26 shows the relationships of the various costs, based on the number of participants.