7/28/2019 Factory Overhead Calculation

1/4

How Factory Overhead is Calculated in Garment

Export Business?

Question: I would like to know, how to calculate overheads? Because so many times I have seen that

merchants are using a fixed number as overheads. When I ask them how they got this number, they failed

to give a satisfactory answer. Please give a brief description. It will be helpful for not only me but also so

many new merchants. ... asked by Alok DeWhen you are making garment for export orders you should know correct method of costing your

product. Secondly, what are the cost factors to be included to have complete cost? At the time product

cost estimation actual figures are considered for direct material cost and actual direct labor cost. But for

overhead cost a percentage of direct labor cost (overhead ratio) is considered in costing calculation.

We can draw a formula,

Garment manufacturing cost = Direct Labor cost + Direct Material Cost + Factory Overhead

Where overhead = x % of direct labor cost

Now question is how do you find value of x?

In this article I have tried to figure it out and explained how you can determine factory overhead ratio.

What is overhead cost?

Costs those are not directly related to production volume. No matter how many garments factory

produces or sales revenue factory generate, fixed cost to be met each month. These are fixed expenses

or indirect cost required to operate a business. For example rent of the factory building, administration

cost etc. Two types of overheads are there fixed factory overhead and variable factory overheads.

What costs are included under overheads?List of overheads may vary factory to factory based on organization structure. When you calculate

overheads for a production factory only then factory has less overhead. On the other hand if you

calculate overhead of a full phase company having marketing, design, sales and warehouse departments

then you will have lot of other overhead parameter.

Common overheads of a garment factory are like,

Building rent Salary of the staffs and associate payroll costs Electricity Bills Utilities (Phone bill, internet bills)

7/28/2019 Factory Overhead Calculation

2/4

Transport expenses Expenses on consumables (Diesel, Chemicals for finishing department) Administration cost (salary and travel cost for the managers, CEOs and VPs), Employee welfare expenses Stationary & printing (indirect material cost) Professional and Legal expenses Pantry expenses House keeping Overtime expenses etc.For the actual list of overheads cost parameters of your factory you can contact to your accountant

department.

How to find overhead factor (Overhead Ratio) of factory?

To calculate factory overhead ratio you have to collect following data from accounts departments for lastsix months. Fixed factory overheads will be same for all six months but for variable factory overheads

take average value to calculate factory overhead ratio.

1. Direct labor wages (A)

2. Factory overheads (B)

So factory overhead over direct labor = B / A

For example, suppose monthly direct labor cost and factory overheads of a small factory are INR

1,042,000.00 and INR 2268,000.00 respectively.

Factory overhead ratio = 2,268,000.00 / 1,042,000.00 = 2.18

An example of the overhead factor calculation sheet is shown in the following table. Note that the ratio

may vary from factory to factory. The figure shown below is just for an example.

7/28/2019 Factory Overhead Calculation

3/4

Table: Factory Overheads

Second Method: Calculation of Factory Overhead per piece:You can also determine factory overhead per piece using monthly production data or machine

productivity figures. Calculate average monthly production of your factory. Divide Monthly factory

overheads by monthly production quantity to determine per piece factory overheads. OR calculate

monthly production using machine productivity figure.

For example, Suppose machine productivity of the factory (having 150 sewing machines) discussed in

above example is 10 pieces per day.

Monthly production of the factory = 150 X 10 X 26 (working days) = 39000 pieces

So, Factory overhead per piece = (Factory overhead / Production quantity)

= ( 2,268,000.00 / 39000 ) = INR 58.15

http://www.gophoto.it/view.php?i=http://4.bp.blogspot.com/-9TekSArMFh4/UVVhcKDqbKI/AAAAAAAAAxk/GHmxwSAj9oI/s1600/Overhead+ratio+garment+factory.png

7/28/2019 Factory Overhead Calculation

4/4

How to use overhead ratio in garment cost estimation?First, calculate labor cost of garment from garment SAM, line efficiency and labor daily wages. Suppose

labor cost per garment is INR 30.00

Calculate overhead amount using overhead ratio and add overhead amount to labor cost and direct

material cost to estimate garment manufacturing cost. I am using factory overhead ratio from the above

table.So, overhead cost per garment will be 30 * 2.18 = INR 65.40

Direct material cost is 150.00

Total Cost of the garment = INR (30.00 + 150.00 + 65.40 ) = INR 245.4