# Labor Costing ### Written byTrue Tamplin, BSc, CEPF®

Updated on December 21, 2022

## What Is Labor Costing?

Labor costing is the process of calculating the cost of labor for a product or service. It is a crucial part of business operations and can significantly impact profitability. Labor costs are typically broken down into direct and indirect costs.

Different methods, techniques, and formulas are used to calculate labor costs.

### Measurement of Labor Turnover

A high labor turnover rate can indicate several issues within a company, such as poor working conditions, low wages, or a lack of opportunities for advancement.

It can also be caused by factors outside of the company’s control, such as the overall economy or changes in the industry. Regardless of the cause, a high labor turnover rate can be costly for a company.

Three principal methods can be used to measure labor turnover.

#### Separation Method

This method considers the number of employees who leave the company divided by the average number of employees during the period.

The formula for separations rate is:

Labor turnover = (No. of separations in a period / Average no. of workers) x 100

LT = (NS / ANW) x 100

So if a company currently has 100 employees and ten leave during the year, the separation rate would be 10%.

#### Replacement Method

This method looks at the number of workers replaced during the month/year divided by the average number of employees during the period.

The formula for replacement rate is:

Labor turnover = (No. of replacements in a period / Average no. of workers) x 100

LT = (NR / ANW) x 100

For example, if a firm has 200 employees and ten are replaced during the year, the replacement rate would be 20%.

#### Flux Method

This method accounts for the number of employees who left and the number of new employees divided by the average number of employees during the period.

The formula for flux rate is:

Labor turnover = ((No. of separations + No. of replacements) / Average no. of workers) x 100

LT = ((NS + NR) / ANW) x 100

For instance, if a business has 1000 employees and a hundred of them leave and a hundred are replaced during the year, the flux rate would be 20%.

### Labor Productivity

Labor productivity measures how much output (in terms of goods or services) is produced by one unit of labor input.

It is typically calculated as output per hour of work. Labor productivity can be measured at the level of an individual worker, a team, a department, a company, an industry, or even an economy.

Labor productivity = Output / Actual hours worked

### Labor Costing Per Unit

This method of labor costing assigns a specific cost to each unit produced. The total labor cost is then divided by the number of units produced to calculate the labor cost per unit.

Labor cost per unit = Direct wages / No. of units

### Time Allowed

It is a period given to complete a task or work.

Standard time + Incentive allowance

### Labor Efficiency

It measures how a given workforce efficiently accomplishes a task compared to the standard set in finishing certain tasks.

It is measured by dividing the actual output by the standard output multiplied by 100 to get the percentage. A higher percentage means higher efficiency.

Labor efficiency = (Actual output / Standard output) x 100

### Time Rate Method

This is the most commonly used method in businesses to calculate the cost of labor. In this method, the labor cost is calculated by multiplying the time taken to complete a task by the hourly pay rate.

Earnings = Hours worked x Rate per hour

For example, if an employee takes 5 hours to complete a task and their hourly rate of pay is \$10, then the cost of labor for that task would be \$50.

### Straight Rate Method

A type of wage system is known as payment by result. In this method, employees’ output (worker’s efficiency) will be multiplied by the rate per piece finished rather than the time involved in doing the work.

Earnings = Output x Rate per unit

For example, if an employee produces ten widgets in an hour and their rate per widget is \$1, then the cost of labor for that task would be \$10.

### Differential Piece Rate System

It is a wage payment in which a worker gets a high piece rate for completing the job within the allotted time and a lower piece rate for completing the job beyond the allotted time.

#### F.W. Taylor's System

Fredrick Winslow Taylor developed this system. It follows the principle that the efficient worker is rewarded while the worker who performs below the standard gets penalized.

Here is how this method is calculated:

Earnings = 80% of price rate when below standard

Earnings = 120% of price rate when at or above standard

#### Merrick Differential Price Rate System

W.H. Merrick developed this system. It is similar to Taylor’s system with a slight variation. Instead of penalizing the worker, a lower differential price rate is paid for work done below the standard time.

 Output % Standard Payment Up to 83% Ordinary piece rate 83% to 100% 110% of ordinary piece rate Above 100% 120% of Ordinary Piece Rate

Henry L. Gantt developed it. In this system, workers are given a bonus for completing the task before the deadline. The amount of bonus is generally a percentage of the wages earned.

 Output % Standard Payment Output below standard Guaranteed time rate Output at standard 120% of time rate Output above standard 120% of ordinary piece rate

Halsey, Doolittle, and Emerson developed it. In this system, workers are given a bonus for completing the task before the deadline. The amount of bonus is generally a percentage of the wages earned.

In this system, he is paid a bonus of 50% for the time saved plus the salary for the actual time spent on the job.

The formula for this method is:

Earnings = (Hours worked x Rate per hour) + (Time saved x Rate per hour x 50%)

E = (HW x RH) + (TS x RH x 50%)

#### Halsey-Weir Plan

It is a modification of the Halsey premium plan. In this system, a standard time is determined, and if a worker saves time by finishing a job earlier, he is paid a bonus of 30%, plus wages for the actual time spent on the job.

The formula for this method is:

Earnings = (Hours worked x Rate per hour) + (Time saved x Rate per hour x 30%)

E = (HW x RH) + (TS x RH x 30%)

#### Rowan System

In the Rowan system, if the time taken by the worker to finish the task is more than the set period, he is paid according to the time rate, but when the worker finishes the work earlier than the standard time; then he is entitled to a bonus along with the time wages.

The formula for this method is:

Earnings = Hours worked x Rate per hour + (Time saved / time allowed x Hours worked x Per hour rate)

E = HW x RH + (TS / TA x HW x RH)

#### Barth Variable Sharing Plan

It was developed by Barth and Co. In this system, the time rate is not guaranteed, which means workers are not paid for the hours worked more than the standard hours.

Earnings = rate per hour x √(Standard hours x Hours worked)

E = RH x √(SH x HW) 