# Standard Costing

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## Introduction to Standard Costing

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Standard costing is an important subtopic of cost accounting. Standard costs are usually associated with a manufacturing company's costs of direct material, direct labor, and manufacturing overhead.

Rather than assigning the actual costs of direct material, direct labor, and manufacturing overhead to a product, many manufacturers assign the expected or standard cost. This means that a manufacturer's inventories and cost of goods sold will begin with amounts reflecting the standard costs, not the actual costs, of a product. Manufacturers, of course, still have to pay the actual costs. As a result there are almost always differences between the actual costs and the standard costs, and those differences are known as variances.

Standard costing and the related variances is a valuable management tool. If a variance arises, management becomes aware that manufacturing costs have differed from the standard (planned, expected) costs.

• If actual costs are greater than standard costs the variance is unfavorable. An unfavorable variance tells management that if everything else stays constant the company's actual profit will be less than planned.
• If actual costs are less than standard costs the variance is favorable. A favorable variance tells management that if everything else stays constant the actual profit will likely exceed the planned profit.

The sooner that the accounting system reports a variance, the sooner that management can direct its attention to the difference from the planned amounts.

If we assume that a company uses the perpetual inventory system and that it carries all of its inventory accounts at standard cost (including Direct Materials Inventory or Stores), then the standard cost of a finished product is the sum of the standard costs of the inputs:

1. Direct material
2. Direct labor

Usually there will be two variances computed for each input:

 Input for Product Variance #1 Variance #2 Direct material Price (or cost) Usage (or quantity) Direct labor Rate (or cost) Efficiency (or quantity) Manufacturing overhead-variable Spending Efficiency Manufacturing overhead-fixed Budget Volume

## Sample Standards Table

Let's assume that your Uncle Pete runs a retail outlet that sells denim aprons in two sizes. Pete suggests that you get into the manufacturing side of the business, so on January 1, 2012 you start up an apron production company called DenimWorks. Using the best information at hand, the two of you compile the following estimates to use as standards for 2012:

Standards Table for DenimWorks

 Large Apron Small Apron Denim material needed for each apron* 2.0 yd. 1.3 yd. Time required to cut and sew each apron 0.3 hr. 0.2 hr. Denim cost per square yard \$3 Labor cost per hour (includes payroll taxes) \$10 Electricity and supplies used per hour of labor \$2 Rent for space per month (includes heat/air) \$600 Rent for equipment per month \$100 Planned production for the year 2012 5,000 aprons 3,000 aprons Planned yards of denim needed for 2012 13,900 yd. 10,000 yd. 3,900 yd. Planned hours to cut and sew in 2012 2,100 hr. 1,500 hr. 600 hr.
 *The denim comes on rolls that are one yard wide, so one yard (yd.) of denim is the same as one square yard of denim.

The aprons are easy to produce, and no apron is ever left unfinished at the end of any given day. This means that your company never has work-in-process inventory.

When we make your journal entries for completed aprons (shown below), we'll use an account called Inventory-FG which means Finished Goods Inventory. (Some companies will use WIP Inventory or Work-in-Process Inventory). We'll also use the account Direct Materials Inventory. (Other account titles often used for direct materials are Raw Materials Inventory or Stores.)

## Direct Materials Purchased: Standard Cost and Price Variance

Direct materials refers to just that—raw materials that are directly traceable into a product. In your apron business the direct material is the denim. (In a food manufacturer's business the direct materials are the ingredients such as flour and sugar; in an automobile assembly plant, the direct materials are the cars' component parts).

DenimWorks purchases its denim from a local supplier with terms of net 30 days, FOB destination. This means that title to the denim passes from the supplier to DenimWorks when DenimWorks receives the material. When the denim arrives, DenimWorks will record the denim received in its Direct Materials Inventory at the standard cost of \$3 per yard (see standards table above) and will record the liability at the actual cost for the amount received. Any difference between the standard cost of the material and the actual cost of the material received is recorded as a purchase price variance.

Examples of Standard Cost of Materials and Price Variance

Let's assume that on January 2, 2012 DenimWorks ordered 1,000 yards of denim at \$2.90 per yard. On January 8, 2012 DenimWorks receives 1,000 yards of denim and an invoice for the actual cost of \$2,900. On January 8, 2012 DenimWorks becomes the owner of the material and has a liability to its supplier. On January 8 DenimWorks' Direct Materials Inventory is increased by the standard cost of \$3,000 (1,000 yards of denim at the standard cost of \$3 per yard), Accounts Payable is credited for \$2,900 (the actual amount owed to the supplier), and the difference of \$100 is credited to Direct Materials Price Variance. In general journal format the entry looks like this:

 Date Account Name Debit Credit Jan. 8, 2012 Direct Materials Inventory 3,000 Accounts Payable 2,900 Direct Materials Price Variance 100

The \$100 credit to the price variance account communicates immediately (when the denim arrives) that the company is experiencing actual costs that are more favorable than the planned, standard cost.

In February, DenimWorks orders 3,000 yards of denim at \$3.05 per yard. On March 1, 2012 DenimWorks receives the 3,000 yards of denim and an invoice for \$9,150 due in 30 days. On March 1, the Direct Materials Inventory account is increased by the standard cost of \$9,000 (3,000 yards at the standard cost of \$3 per yard), Accounts Payable is credited for \$9,150 (the actual cost of the denim), and the difference of \$150 is debited to Direct Materials Price Variance as an unfavorable price variance:

 Date Account Name Debit Credit Mar. 1, 2012 Direct Materials Inventory 9,000 Direct Materials Price Variance 150 Accounts Payable 9,150

After the March 1 transaction is posted, the Direct Materials Price Variance account shows a debit balance of \$50 (the \$100 credit on January 2 combined with the \$150 debit on March 1). A debit balance in a variance account is always unfavorable—it shows that the total of actual costs is higher than the total of the expected standard costs. In other words, your company's profit will be \$50 less than planned unless you take some action.

On June 1 your company receives 3,000 yards of denim at an actual cost of \$2.92 per yard for a total of \$8,760 due in 30 days. The entry is:

 Date Account Name Debit Credit June 1, 2012 Direct Materials Inventory 9,000 Direct Materials Price Variance 240 Accounts Payable 8,760

Direct Materials Inventory is debited for the standard cost of \$9,000 (3,000 yards at \$3 per yard), Accounts Payable is credited for the actual amount owed, and the difference of \$240 is credited to Direct Materials Price Variance. A credit to the variance account indicates that the actual cost is less than the standard cost.

After this transaction is recorded, the Direct Materials Price Variance account shows an overall credit balance of \$190. A credit balance in a variance account is always favorable. In other words, your company's profit will be \$190 greater than planned due to the favorable cost of direct materials.

Note that the entire price variance pertaining to all of the direct materials received was recorded immediately. In other words, the price variance associated with the direct materials received was not delayed until the materials were used.

We will discuss later how to handle the balances in the variance accounts under the heading "What To Do With Variance Amounts".

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