100% Markup — What It Means, How to Calculate It & Real Examples
A 100% markup means you add 100% of the cost on top of the cost, selling at exactly 2x what you paid. It produces a 50% gross margin, not a 100% gross margin, which is the most common pricing misconception. In retail, 100% markup is also known as keystone pricing and remains the most widely used rule of thumb.
100% Markup means adding the full cost amount on top of cost as profit.
Cost $50 + Markup $50 = Selling Price $100
This is not a 100% margin. It is a 50% gross margin.
100% Markup Formula
This is the 100% version of the standard markup formula: double cost, then verify markup and margin separately.
Selling Price with 100% Markup
Selling Price = Cost x (1 + 100/100)
= Cost x 2$50 x 2 = $100
Verify Markup %
Markup % = (Selling Price - Cost) / Cost x 100
= ($100 - $50) / $50 x 100
= 100%Profit is equal to cost, so markup is 100%.
Gross Margin at 100% Markup
Gross Margin = Profit / Selling Price x 100
= $50 / $100 x 100
= 50%100% markup always converts to 50% gross margin.
100% markup always produces exactly 50% gross margin — never 100% margin. Markup and margin use different denominators, which is why the percentages differ. If you are comparing smaller markup policies, review the coming 50% markup guide next.
Try 100% Markup with Your Own Numbers
The live markup calculator starts with cost $50 and markup 100%, producing a $100 selling price and 50% gross margin.
Try 100% Markup with Your Own Numbers
Start from 100% markup, then edit cost or markup to see selling price, profit, and gross margin recalculate.
Recommended driver fields: Cost Price + Markup %.
100% Markup vs 100% Margin — The Most Common Pricing Mistake
100% markup is not the same thing as 100% margin. They sound identical, but they produce completely different numbers because markup is based on cost while margin is based on selling price.
100% markup produces 50% gross margin. A true 100% margin would imply infinite markup: you would be keeping all revenue as profit while having no cost inside the sale, which is mathematically impossible in a cost-based business.
The real-world mistake is a buyer targeting “100% margin” but typing it into a markup field, or doing the reverse. On a $50 cost item, that error means pricing at $100 instead of the correct price for the intended margin. Use the markup vs margin guide when the terms are being mixed.
| 100% Markup | 50% Margin | |
|---|---|---|
| Cost | $50 | $50 |
| Selling Price | $100 | $100 |
| Profit | $50 | $50 |
| Markup % | 100% | 100% |
| Gross Margin % | 50% | 50% |
| Formula base | Cost | Selling Price |
What Does 100% Markup Look Like in Practice?
| Cost | 100% Markup | Selling Price | Gross Margin |
|---|---|---|---|
| $5.00 | +$5.00 | $10.00 | 50% |
| $12.50 | +$12.50 | $25.00 | 50% |
| $30.00 | +$30.00 | $60.00 | 50% |
| $75.00 | +$75.00 | $150.00 | 50% |
| $200.00 | +$200.00 | $400.00 | 50% |
The pattern is always the same: selling price is double the cost, and gross margin is always 50%. The dollar amounts change, but the ratio never does.
Which Industries Use 100% Markup?
100% markup is most common in retail categories where keystone pricing is still a useful rule of thumb. Specialty stores, boutiques, home decor, apparel, beauty, and jewelry often start near 100% markup and then adjust up or down by category.
It is less useful in high-transparency or high-turnover categories. Use keystone pricing as a benchmark, then compare your category against broader markup by industry data.
| Industry | Uses 100% Markup? | Notes |
|---|---|---|
| Boutique Retail | ✅ Standard | Keystone is the default rule |
| Jewelry | ✅ Minimum floor | Often goes higher (200%–300%) |
| Home Décor | ✅ Common | Starting point for pricing |
| Beauty / Cosmetics | ✅ Common | Brand premium can push higher |
| Apparel & Fashion | ✅ Common | Fast fashion may go lower |
| Consumer Electronics | ❌ Too high | Competitive pressure limits to 10%–30% |
| Grocery | ❌ Too high | Volume model, 5%–25% typical |
| Software / SaaS | ⚠️ Varies | Cost structure is different; margin model preferred |
How to Calculate the Selling Price for 100% Markup (Step-by-Step)
Find your total landed cost
Multiply by 2
Confirm markup
Cross-check gross margin
Check the market
Worked example: landed cost is $34.00, so the 100% markup selling price is $34.00 x 2 = $68.00. Gross margin is $34 / $68 = 50%. If competitors sell similar items at $65 to $75, $68 is competitive.
When 100% Markup Is Not Enough
If operating costs are high, 50% gross margin may not leave enough for net profit. Brick-and-mortar rent, a large sales team, high return rates, shrinkage, and markdown-heavy selling can consume the spread quickly.
Fine dining, luxury retail, and jewelry regularly exceed 100% markup, not out of greed, but because their cost structures demand it. Use the industry benchmark tool to check whether 100% markup is above, inside, or below the range for your specific category, and compare related retail markup ranges before locking a price.
100% Markup Questions
Move from 100% markup into keystone pricing, formulas, and margin checks.
Doubling cost is simple. The related guides help you verify the formula, avoid margin mistakes, and compare category benchmarks.
Open Home CalculatorUse the 2x retail rule and understand its 50% gross margin math.
Use the exact formulas and spreadsheet syntax behind each calculation.
Convert the two correctly and stop missing pricing targets.
Understand keystone pricing, category ranges, and store-level profit.