# Margin vs Markup Explained
Margin and markup are two of the most commonly confused terms in small business pricing — and mixing them up can cost you real money.
They both describe the relationship between cost and selling price, but they calculate it differently. Using the wrong one when setting prices means you’re either leaving money on the table or unknowingly undercharging.
Here’s the difference, clearly explained.
## The Simple Definitions
**Markup** is how much you add **on top of** your cost, expressed as a percentage of cost.
**Margin** is your profit expressed as a percentage of your **selling price**.
Same numbers, different base. That’s the key distinction.
## A Concrete Example
Say it costs you $100 to complete a job (materials + labour + overhead).
**If you apply a 25% markup:**
> $100 × 1.25 = **$125 selling price**
> Profit = $25
**But what’s your margin on that job?**
> $25 profit ÷ $125 selling price = **20% margin**
You applied a 25% markup but only achieved a 20% margin. If you told yourself “I want 25% margin on this job” and used markup to calculate it, you’ve undercharged.
## The Formulas
**Markup formula:**
> Selling Price = Cost × (1 + Markup %)
> Example: $100 × 1.30 = $130 (30% markup)
**Margin formula:**
> Selling Price = Cost ÷ (1 – Margin %)
> Example: $100 ÷ 0.70 = $142.86 (30% margin)
Notice the difference — a 30% markup gives you $130, but a 30% margin requires $142.86. That’s a $12.86 difference on a $100 cost base. On larger jobs, this gap is significant.
## Markup to Margin Conversion Table
| Markup % | Equivalent Margin % |
|———-|——————-|
| 10% | 9.1% |
| 15% | 13.0% |
| 20% | 16.7% |
| 25% | 20.0% |
| 30% | 23.1% |
| 40% | 28.6% |
| 50% | 33.3% |
| 100% | 50.0% |
If your target is a 30% margin, you need to apply a **42.9% markup** — not 30%.
## Which One Should You Use?
Both are useful — they just answer different questions.
**Use markup when:**
– You’re calculating a selling price from a known cost
– You want a simple multiplier to apply quickly in quotes
– You’re talking to suppliers about trade pricing
**Use margin when:**
– You’re reporting business profitability
– You’re comparing your performance to industry benchmarks
– You’re talking to an accountant or bank
Most financial reporting uses margin because it’s expressed as a percentage of revenue — the top line number. When someone says “our gross margin is 35%”, they mean 35 cents of every dollar of revenue is profit after direct costs.
## The Real-World Problem
The confusion causes problems in two common scenarios:
**Scenario 1: Targeting the wrong number**
A fabricator wants to make 30% profit on every job. They add 30% to their costs using markup. But 30% markup only delivers 23% margin — they’re consistently 7 percentage points short of their target without realising it.
**Scenario 2: Quoting from memory**
“I always charge cost plus 40%” — this is markup. If your accountant tells you your gross margin is only 28%, that’s why. A 40% markup produces a 28.6% margin.
Neither is wrong as a method — the problem is using one while thinking you’re using the other.
## A Simple Way to Remember It
**Markup** — the extra you put **on top** of cost (percentage of cost)
**Margin** — the profit that remains **inside** the price (percentage of price)
Think of it this way: if you sell something for $100 and your cost was $75, you have $25 profit.
– **Markup:** $25 ÷ $75 = **33.3%** (profit as a % of cost)
– **Margin:** $25 ÷ $100 = **25%** (profit as a % of selling price)
## Applying This to Your Fabrication Business
When you’re setting your target profitability, decide which metric you want to hit and use the correct formula:
**To achieve a 30% margin:**
> Selling Price = Total Cost ÷ 0.70
**To apply a 30% markup:**
> Selling Price = Total Cost × 1.30
Build whichever formula suits your workflow into your quoting process and use it consistently. The worst outcome is mixing the two — applying markup in some quotes and margin in others with no awareness of the difference.
Once you’re clear on the distinction, pricing becomes more consistent, your profitability becomes more predictable, and comparing your results to your targets actually means something.
Use our free **Profit & Loss Statement Generator** to track your actual margins each month and see whether your pricing is delivering the profitability you’re targeting.