In today’s fast-moving fashion world, being an apparel merchandiser means more than just following trends — it means understanding the business behind every style. One of the most important skills you’ll need is garments costing.

If you’re new to this field, learning how to calculate costing may feel confusing at first. But think of it like this: costing is your roadmap. Without it, you can’t reach your destination — whether that’s profit, quality, or buyer satisfaction.

This guide is made for beginners who want to learn the basics in a simple, real, and practical way. No complicated terms. Just clear steps and real examples that will help you understand how costing works and why it matters in every part of the production journey.

What is garments costing?

Garments costing means calculating the total cost of making a garment — from raw materials to shipping. It’s the heart of pricing. If the cost is wrong, the business loses money. If it’s too high, the buyer walks away. So, accurate costing is everything.

Imagine you’re cooking a dish. You need to know how much rice, oil, salt, and spices you’ll use, and how much it’ll cost. Garment costing is exactly like that — but for clothes.

Why garments costing matters for a beginner merchandiser

As a beginner merchandiser, your job isn’t just following instructions. You need to analyze prices, negotiate smartly, and make decisions that affect profit. Costing helps you:

• Understand the production process
• Avoid losses and over-quoting
• Build trust with buyers
• Improve price negotiation with suppliers

So, before you jump into order management or fabric sourcing, get your costing basics clear.

Core elements of garments costing

Let’s break down the main components:

1. Fabric Cost (60%-70% of Total Cost)

This is the biggest part. You calculate:

• Fabric price per kg or meter
• Fabric consumption (how much fabric per piece or dozen)
• Wastage percentage (usually 3%-5%)

Formula:
Fabric Cost = (Fabric Price per unit x Consumption) + Wastage

 Example:
If you make a cotton S/J T-shirt and need 0.23 Kgs one piece garment, and fabric costs $4.65/Kgs,
Fabric cost = 0.23 x $4.65 = $1.07
Add 5% wastage = $1.07 x 1.05 = $1.13

One piece garment fabric price = $1.13

2. Trims and Accessories

This includes:

• Buttons, zippers, labels, tags, threads, elastics

Estimate the cost of all the items used in one garment.

 Example:
Button: $0.05, Label: $0.08, Hangtag: $0.05, Thread: $0.03
Total trims = $0.23 per piece

3. Cost of Making(CM)

This is the labour cost for cutting, sewing, ironing, folding, packing.

It depends on:

• Style complexity
• Stitch type
• Machine handling time

Example:
Basic T-shirt CM cost = $0.30 to $0.40

4. Printing or Embroidery

If your design has print or embroidery:

• Screen print = $0.10–$0.50
• Embroidery = $0.20–$1.00

These vary depending on design size and stitch density.

5. Wash Cost (if applicable)

Special washes like stone wash, acid wash, enzyme wash:

• Adds $0.20 to $0.80 per piece depending on process.

6. Overhead Cost

Factory overheads like:

• Utility bills
• Manager salary
• Machine maintenance

This is usually 15%–20% of CM cost.

7. Profit Margin

This is the markup you add to earn money.

Beginners usually keep 10%–20% profit depending on buyer flexibility.

8. Testing, Inspection, and Miscellaneous

Buyer-required tests like:

• Colorfastness
• Shrinkage test

Also include:

• Carton
• Poly bag
• Tagging

Add around $0.05 to $0.15 per piece.

Final garment costing formula (simplified)

Here’s how it looks when everything comes together:

 Cost =  
(Fabric + Trims + CM + Printing/ Embroidery + Wash +  Overhead + Testing )  
+ Profit Margin

Pro tips for beginner merchandisers

1. Always double-check consumption – even small errors cost big money.
2. Get supplier quotations in writing – never guess fabric prices.
3. Know the buyer’s costing format – every brand has its style.
4. Use Excel or costing software to avoid manual mistakes.
5. Follow market trends – raw material prices change often.

Common mistakes to avoid

• Ignoring wastage in fabric costing
• Forgetting to include testing and accessories
• Underquoting CM cost to impress the buyer
• Not calculating profit margin clearly
• Mixing up FOB and CIF prices (always confirm with buyer)

Conclusion: start smart, grow fast

Garments costing might feel complex at first, but with practice, it becomes second nature. For a beginner apparel merchandiser, mastering this skill will not only help you avoid losses but also build confidence, gain buyer trust, and grow faster in your career.

Costing is not just about numbers. It’s about logic, planning, and understanding how a garment comes to life — piece by piece.

So take a deep breath, open your costing sheet, and start practicing today.