You are here: Home / Economics / Microbusiness economics / Total Variable Cost: Meaning, Examples, Curve, Importance

What’s it: Total variable cost is the amount of all variable expenses. Suppose you have information on variable prices per unit. In that situation, you have the right to calculate this by multiplying by the amount to obtain the complete variable expense number.

You are watching: As output increases, total variable cost

Variable price varies with the number of output developed. If output increases, it rises. And vice versa, If output decreases, it decreases. At zero manufacturing, the complete variable cost is constantly zero.

Compute complete variable cost

To calculate full variable price, you should add up each firm’s variable costs. If, in a situation, you uncover the variable price per unit, then to calculate the full, you multiply it by the full output. Here is the formula:

Total variable expense = Variable prices per unit x Total output

Say, the agency reports a variable expense of $50 to make one unit of product. If the company’s total production is 30 systems, the total variable cost is $1,500 ($50 x 30).

In other instances, you might need to include up the variable prices of each kind. Say, as soon as it produces 100 devices of product, the firm reports the cost per unit as follows:

Direct material cost per unit: $10Direct labor expense per unit: $14Overhead expense per unit: $8

From this information, you first have to add up all these variable costs and obtain $32 per unit variable expenses ($10 + $14 + $8). Then, you multiply the outcome by the complete output to get the full variable expense, which is $3,200 ($32 x 100 units).

In other situations, you may uncover complete costs and complete solved prices. To calculate complete variable expense, you deserve to subtract complete fixed prices from complete prices.

Total variable price = Total expenses – Total resolved costs

Examples of variable costs

Variable costs differ between sectors. But, to be sure, they just cover those costs that increase (decrease) in response to a rise (decrease) in manufacturing or sales volume. In production, the elements of the full variable expense generally consist of:

First, direct raw material prices. Raw products make up the finished product and can be traced to specific manufacturing activities.

Therefore, when manufacturing boosts, suppliers require even more raw materials. Conversely, once production decreases, service providers need less raw products. Companies carry out not require raw products as soon as cshedding factories or stopping manufacturing.

Second, logistics expenses. When enhancing manufacturing, the agency transporting activities more raw products to the manufacturing facility. Conversely, a decrease in manufacturing reduces the delivery of raw materials.

Third, piece price. The firm may employ short-term employees to assist with the manufacturing procedure. They help some permanent employees to run machines or various other production tasks.

Companies are hiring more temporary employees to boost manufacturing once they meet spike orders. However, throughout normal production, they just use long-term employees and perform not require temporary workers.

As a note to you, some direct labor forms may not be thought about an element of complete variable price because they rarely adjust straight to production volume.

In addition, in a service firm, direct labor costs are variable prices bereason they vary directly through the firm’s variety of solutions.

Other examples of variable prices are:

Packaging costsShipping price to the customerSales commissionUtility expenses linked through production activities

Total variable cost curve

As I have mentioned, variable expenses readjust in propercentage to the production output. They decrease or increase depending on the manufacturing volume of the company. They increase once manufacturing increases and falls as soon as production decreases.


At the same time, resolved expenses perform not change regardless of the firm’s output. Whether making sales or not, the firm has to bear solved expenses. In other words, we say addressed expenses are independent of output.

Instances of fixed costs are machine rental, vehicle rental, and also office offers. The company still hregarding pay rent for the auto, regardless of whether they run it or not.

Thus, if we plot it on a graph, the total price curve moves up as the output increases. When production is equal to zero, the value is additionally zero.

Conversely, bereason it does not adjust, the full solved expense curve stays horizontal. When manufacturing amounts to zero, the company need to pay a addressed price so that the worth will not equal zero, as in the photo above.

Furthermore, the complete expense curve will additionally increase according to the complete variable price curve. Remember, the full is equal to full variable expense plus complete fixed prices. Due to the fact that fixed costs carry out not readjust, the total price curve will certainly follow the average variable cost curve.

Why complete variable cost matters 

First, we usage it in the breakeven evaluation. The breakeven allude occurs when total revenue amounts to total manufacturing prices. From the evaluation, we have the right to then recognize the sales volume and also price. Here is the formula for both:

Break-also volume = Fixed prices / (Sales revenue – Variable costs) / Units sold

Break-also price = Total solved costs / devices sold) + variable costs per unit

Second, we use it to calculate the contribution margin. It is beneficial for measuring how a lot revenue can cover variable expenses. A high contribution margin reflects you the firm is making substantial amounts of money, paying solved costs and profit.

See more: How To Say Good Boy In German ? How Do You Say I Am A Good Boy In German

The following is the contribution margin formula:

Contribution margin = / (Quantity x Selling price)

Third, providers use variable expense indevelopment to assistance efficiency and profit margins. From the contribution margin formula above, you have the right to view, the lower the variable cost per unit, the greater the contribution margin. For instance, to acquire lower raw material prices, service providers can buy in bulk for a discount. Or, the firm have the right to get a supplier and combine it into its existing service.