Prime costs are the amount of straight material and also direct labor. Here’s how to calculate and also interpret prime costs in your tiny business.


Prime expenses sum direct material and direct labor, conversely, conversion prices sum manufacturing overhead and also direct labor.

You are watching: Prime cost consists of direct materials combined with:

How to calculate prime costs

Before you calculation prime costs, identify all three product costs: straight material (DM), direct labor, and manufacturing overhead.

1. Calculate direct materials

The first element of the prime price calculation is direct materials, which include the physical components that consist of your product.

A woodworker production a chair would certainly count lumber and also fabric as straight materials. Other materials used in production that don’t end up in the last product — such together the gloves, goggles, and masks because that the woodworker — are taken into consideration indirect materials and are component of manufacturing overhead.

To calculate straight material supplied in production, use this formula:

Beginning DM inventory + DM purchase - finishing DM inventory = direct Material Used

2. Calculate straight labor

The next element to calculate is straight labor, or the compensation of factory workers.

There’s no labor price formula per se, however follow this rule: direct labor excludes pay for civilization who aren’t directly involved in work on the do or offering the product. Don’t counting Supervisors, janitors, or various other workers who weren’t putting your product together.

For example, a woodworker’s salaries are thought about direct labor, but a supervisor’s salary is indirect labor and would be part of production overhead.

Direct labor contains the adhering to forms that compensation:

Hourly wagesSalaried wagesSales commissionsBenefitsBonusesEmployer payroll taxes

Time-tracking software can assist you determine just how much time employees invested manufacturing certain products. Sum the production workers’ revenue to determine direct labor.

3. Sum direct materials and also direct labor

The prime prices formula sums straight labor and also direct material.

Direct job + straight Material = element Costs

Example of prime costs

James own Snack Shack, a little beachfront restaurant in Miami. He’s searching for an investor that can carry out some resources to turn the outdoor patio into the best lunch spot prior to next feather break.

A seasoned organization owner, James knows investors will ask about prime costs, a metric restaurateurs often use together a proxy because that financial health when compared to sales. Let’s calculate his business’s prime expenses for the last calendar year.

1. Calculate straight materials

Start by including up direct materials. Because that a restaurant, that’s ingredients, beverages, and also other commodities that finish up in front of the customer.

Reusable tableware isn’t taken into consideration direct material; together a basic rule, straight material need to be other the customer have the right to (legally) leaving with. However, the little record umbrellas that adorn every cocktail space counted as straight material due to the fact that they’re disposable garnishments.

The company"s audit software reflects the adhering to inventory data.

Snack Shack offered $400,000 in straight materials critical year ($15,000 beginning inventory + $395,000 purchased list - $10,000 finishing inventory).

2. Calculate straight labor

Servers, cooks, hosts, and also bussers room the straight laborers in ~ a restaurant. Include up your wages, bonuses, overtime pay, employer payroll taxes, and healthcare benefits.

The restaurant’s worker revenue data is below.

name job Restaurant compensation tips
Rhonda Waiter $15,000 $22,000
Jose Waiter $15,000 $22,000
Amelia cook $40,000 $0
James Owner $50,000 $0

Snack Shack’s direct labor expense is $70,000 ($15,000 Rhonda’s incomes + $15,000 Jose’s wages + $40,000 Amelia’s wages). Since James doesn’t chef or serve, his revenue don’t count in the direct labor calculation.

Don’t incorporate tips in the straight labor calculation because your employee earned them at no cost to the business.

3. Sum straight materials and also direct labor

Snack Shack’s prime costs are $470,000 ($400,000 direct materials + $70,000 straight labor).

Now that James knows his element costs, he have the right to move on to calculating the restaurant’s benefit margin, gun margin, and prime costs to sales ratio.

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You’ve been primed

Prime cost audit can aid you decision on a product’s offering price or even if it is to fall a product line in favor of a lower-cost alternative. However, feather at her prime costs is simply one means to analyze your business’s jae won performance. Check out a host of various other financial audit ratios you can use to take your financial evaluation to the following level.