What this calculator does
This markup calculator takes a unit cost and a markup percentage and returns the selling price, profit per unit in pounds, and the gross margin that price actually produces. It also generates a comparison table showing how a range of markup levels translate into prices and margins, so you can see the whole curve rather than a single point.
The margin figure is the one to watch. Markup is how buying decisions are naturally expressed — you add a percentage to what you paid a supplier — but margin is what appears in your profit and loss account. Keeping both on screen stops the two quietly diverging.
When to use it
Reach for it whenever you have a cost and need a price: retail, wholesale, and any resale business runs on this calculation daily. Enter the landed cost, apply the markup your category supports, and read off the ex-VAT price together with the margin it delivers.
It is equally valuable for testing a discount before agreeing to it. Because profit falls proportionally faster than price, a concession that sounds modest can remove half the profit on a unit. Running the reduced figure through the calculator makes that concrete, which is a much better basis for a decision than a general sense that the request seems fair.
Understanding the inputs
Cost should be the landed cost of one unit, excluding VAT: the supplier invoice plus carriage, duty, and any handling needed to make the item saleable. Using invoice price alone hides those charges inside your margin, which on imported or bulky stock can cost several points.
Markup percentage applies to cost rather than to price. Entering 100 doubles the cost. If you are working toward a margin target instead, the conversion runs the other way: a 40 percent margin needs roughly 67 percent markup, and a 50 percent margin needs 100 percent. Add VAT to the resulting price only at the final step.
How is this calculated?
Selling Price = Cost × (1 + Markup/100). Profit = Selling Price − Cost. Margin = Profit / Selling Price × 100.
A worked example
An independent shop buys a line at £6.50 landed and applies a 65 percent markup. The selling price comes to £10.73 excluding VAT, profit is £4.23 per unit, and gross margin is about 39 percent. With VAT at 20 percent the shelf price would be roughly £12.88, though the VAT element never belongs to the business.
Apply a 15 percent discount and the ex-VAT price falls to £9.12, cutting profit to £2.62 — a 38 percent drop in profit for a 15 percent price reduction. Holding total gross profit steady would need unit sales to rise by about 61 percent, which is a stretching target for most promotional periods.
Limitations and assumptions
The calculator handles single-unit arithmetic and has nothing to say about whether the market will bear the price. Cost-plus pricing ignores competitor positioning and customer willingness to pay, and in categories where shoppers compare online in the aisle, that blind spot can be decisive.
It also leaves out overheads, shrinkage, returns, and the capital tied up in slow-moving stock. A markup that looks healthy per unit may still fail to support a business whose stock turns twice a year. Use it for the pricing arithmetic, then test the resulting margin against your full cost base and against what competitors are actually charging.
Common Questions
- How do I convert a markup into a margin?
- Divide the markup by one plus the markup. A 50 percent markup gives 0.5 over 1.5, or a 33 percent margin. A 100 percent markup is a 50 percent margin, and 200 percent gives 67 percent. The relationship is not linear, which is exactly why it trips people up so consistently.
- Do I mark up before or after VAT?
- Before, always. Apply markup to the VAT-exclusive landed cost to reach a VAT-exclusive selling price, then add VAT at 20 percent for the shelf price if you are registered. Marking up a VAT-inclusive cost double-counts tax you will reclaim and produces a price that is both wrong and uncompetitive.
- What markup is normal in my sector?
- Rough rules of thumb: general retail 50 to 100 percent, clothing and giftware often higher, hospitality 200 to 300 percent on food and more on drinks, and service businesses 30 to 60 percent on delivery cost. These shift considerably with location and positioning, so use them as a starting point only.
- Should I mark up invoice cost or landed cost?
- Landed cost — the supplier invoice plus carriage, and since Brexit any customs duty and clearance charges on EU imports. Marking up invoice cost alone absorbs those charges into your margin invisibly, and for bulky or imported stock that can quietly remove five to ten percentage points.
- How do I set a markup that covers overheads?
- Express overheads as a percentage of cost of sales, add your target profit, and mark up by the combined figure. If overheads run at 30 percent of cost and you want 20 percent profit on cost, a 50 percent markup is your floor. That is far sounder than choosing a round number.
- Is keystone pricing still the retail default?
- Doubling cost — a 100 percent markup producing a 50 percent margin — remains a common starting point in independent retail, though online price comparison has eroded it in many categories. It still serves as a useful reference point, showing at a glance how much room any discount actually leaves you.
- What does a discount really cost me?
- Far more than the headline suggests. An item costing £10 and marked up 100 percent sells at £20 with £10 profit. Discount by 20 percent and the price is £16 but profit is only £6 — profit has fallen 40 percent for a 20 percent price cut. Sale planning should start from that arithmetic.
- Should markup vary across my range?
- Generally yes. Fast-moving lines that customers price-check tolerate thinner markup because volume makes up for it, while slow-moving specialist stock needs more to justify the shelf space and tied-up capital. One blanket percentage across a varied range usually overprices your footfall drivers and underprices your niche items.