Markup Calculator (Classic)

The Markup Calculator (Classic) solves the cost-plus pricing relationship in three directions. Choose Price to find a selling price from cost and markup. Choose Cost to infer cost from a selling price and markup. Choose Markup to calculate the markup percentage from known cost and selling price. In every mode, the calculator also reports cost, selling price, profit, markup on cost, gross margin, and the price-to-cost multiple.

This is a markup tool, not a target-margin tool. The denominator for markup is cost. That makes it useful for retailers, contractors, wholesalers, agencies, and makers who start with a known unit cost and add a cost-plus percentage. If your policy is stated as gross margin instead, use the margin calculator or the classic margin page. If you want the simpler one-way version, use the markup calculator. To test checkout tax or promotions after the pre-tax price is found, use the sales tax calculator and percent off calculator.

What the calculator does

The calculation reads the selected solve mode and uses the matching equation. In Price mode, it multiplies cost by one plus markup divided by 100. In Cost mode, it divides revenue by one plus markup divided by 100. In Markup mode, it subtracts cost from revenue, divides the profit by cost, and converts the result to a percentage. After solving the missing value, it calculates profit, gross margin, and price-to-cost multiple from the completed cost and revenue pair.

The validation rules matter. Cost and selling price must be positive whenever they are used. Markup must be greater than negative 100% in modes where markup is an input, because negative 100% would reduce a positive cost to a zero selling price. Very high markup percentages are allowed because some products have low direct cost but large risk, service, storage, or scarcity premiums.

Formula

Profit is the difference between selling price and cost:

$\text{profit} = \text{selling price} - \text{cost}$

Markup uses cost as the denominator:

$\text{markup} = \frac{\text{profit}}{\text{cost}} \times 100\%$

To solve for selling price:

$\text{selling price} = \text{cost} \times \left(1 + \frac{\text{markup}}{100}\right)$

To solve for cost:

$\text{cost} = \frac{\text{selling price}}{1 + \frac{\text{markup}}{100}}$

The margin line shown for comparison is:

$\text{gross margin} = \frac{\text{profit}}{\text{selling price}} \times 100\%$

Checking a markup calculator (classic) scenario

Use Price mode with the calculator’s default inputs: $80 cost and 25% markup. The selling price is:

$\text{selling price} = \$80 \times \left(1 + \frac{25}{100}\right) = \$80 \times 1.25 = \$100$

Profit is:

$\text{profit} = \$100 - \$80 = \$20$

Markup is confirmed as:

$\text{markup} = \frac{\$20}{\$80} \times 100\% = 25\%$

Gross margin is:

$\text{gross margin} = \frac{\$20}{\$100} \times 100\% = 20\%$

The price-to-cost multiple is 1.25×, because $100 divided by $80 equals 1.25. The primary result in Price mode is $100 selling price. If you switch to Markup mode and enter $80 cost and $100 revenue, the primary result becomes 25% markup while the same $20 profit and 20% margin remain in the details.

When to use each solve mode

Use Price mode when a supplier quote, bill of materials, labor estimate, or landed cost is known and you need a cost-plus selling price. This is common in retail, trades, manufacturing, and consulting. Build all direct costs into the cost input before choosing a markup; otherwise the final price may not cover freight, packaging, payment fees, returns, shrinkage, or billable labor.

Use Cost mode when a manager or vendor gives a selling price and a markup policy, but you want to check the implied cost. For example, a $150 selling price at 50% markup implies $100 cost. If your actual cost is higher, the stated markup is not achievable.

Use Markup mode to audit an existing price. Enter what the item costs and what it sells for. The calculator will show whether the realized markup matches policy and how that result translates into margin. This is helpful before changing a price list, approving a discount, or comparing products with very different cost bases.

Caveats and interpretation

Markup is not the same as net profit. The calculator works at the gross level: selling price minus the cost you enter. It does not subtract rent, salaries, software, marketing, financing, taxes, warranty claims, or overhead allocations unless you include them in the cost input. A healthy markup can still lead to weak net profit if operating expenses are high.

Also remember that market limits matter. A formula may say a price should be $100, but competitors, customer willingness to pay, inventory age, and substitute products may force a different decision. Use the calculator to make the math transparent, then compare the result with demand, positioning, and risk.

Finally, label the percentage carefully when sharing results. A 25% markup and a 25% margin are not interchangeable. If a team member expects margin but receives markup, the price may be too low. This classic page shows both numbers side by side so the conversation stays precise.

Sources

• Corporate Finance Institute, Markup — definition and cost-plus pricing context.
• AccountingTools, Markup definition — markup formula and pricing explanation.
• AccountingTools, Gross margin — margin definition used for comparison with markup.