The short version
First calculate the complete operating cost for the batch. Then choose either a markup or a target margin. If a selling platform takes a percentage of revenue, include that rate while solving for price—not after the fact. Keep the units visible: some inputs apply to every production attempt, some apply once to the batch, and some are charged as a percentage of customer revenue.
required batch revenue = (batch operating cost + fixed selling fee) ÷ (1 − target margin − variable fee rate). Divide that revenue by the number of sellable units only after the batch calculation is complete.Define the variables before using the formula
| Variable | Meaning | Unit |
|---|---|---|
| Direct material per attempt | Blank, transfer, packaging and other inputs exposed to one production attempt | Dollars per attempt |
| Expected failure rate | The share of attempts expected not to become sellable units | Decimal or percentage |
| Setup labor | Active work performed once for the order | Minutes per batch |
| Unit labor | Active work repeated for each intended sellable item | Minutes per unit |
| Batch support cost | Equipment, overhead and absorbed shipping allocated once to the batch | Dollars per batch |
| Selling fees | Any percentage of revenue plus fixed charge modeled for the order | Rate and dollars |
A consistent unit prevents common spreadsheet errors. Do not add a per-item value to a batch total without multiplying by quantity, and do not divide a batch cost by quantity twice. The labor and overhead guide shows how to separate setup time, active unit work and support costs.
1. Expected material cost after failures
If direct material for one attempt is $4.00 and the expected failure rate is 10%, the expected material cost of one sellable item is:
$4.00 ÷ (1 − 0.10) = $4.44
Simply adding 10% gives $4.40 and slightly understates the replacement attempts. The difference grows as the failure rate rises. Base the percentage on recorded attempted and good units when possible; the sublimation waste-rate guide explains how to keep that denominator consistent.
2. Labor for a batch
Labor cost = (setup minutes + active minutes per item × quantity) ÷ 60 × hourly rate
Keep setup separate from per-item work. A 20-minute design/setup task is expensive on one item and much smaller per unit on fifty identical items.
3. Complete batch operating cost
Batch operating cost = expected material per good item × quantity + batch labor + equipment + overhead + absorbed shipping
Only include a cost once. If electricity is already inside a monthly overhead allocation, do not add the same electricity again as a batch expense. If customer-paid shipping is included in the revenue on which a platform charges fees, keep the carrier expense and the amount collected from the customer as separate inputs.
IRS Publication 334 discusses materials, labor and allocable overhead as manufacturing-cost categories. That source supports keeping costs visible, but the calculator is a management-pricing tool rather than a tax-return calculation.
4. Markup versus margin
| Method | Formula | $10 cost at 50% |
|---|---|---|
| 50% markup | Cost × (1 + markup) |
$15.00 price, 33.3% margin |
| 50% margin | Cost ÷ (1 − margin) |
$20.00 price, 50% margin |
Markup uses cost as its denominator. Margin uses revenue. The percentages are not interchangeable, so label the selected method on any saved quote or worksheet. See sublimation markup versus margin for conversions, discount effects and fee examples.
5. Target margin after selling fees
Required batch revenue = (batch cost + fixed order fee) ÷ (1 − target margin − variable fee rate)
This equation treats the fixed fee as one fee for the order. If a platform charges a separate fixed fee for every item, enter the total fixed fees for that batch. The denominator must stay above zero.
Worked example: eight identical items
Assume eight sellable items, $6.40 of direct material per attempt, a 5% expected failure rate, 18 setup minutes, seven active minutes per item and a $24 hourly labor input. Add $9.50 of equipment and overhead for the batch. The selling channel charges a hypothetical 4% variable fee and $0.30 fixed fee, and the target margin is 35%.
- Expected material per good item:
$6.40 ÷ 0.95 = $6.736842. - Expected batch material:
$6.736842 × 8 = $53.894736. - Labor:
(18 + 7 × 8) ÷ 60 × $24 = $29.60. - Batch operating cost:
$53.894736 + $29.60 + $9.50 = $92.994736. - Required revenue:
($92.994736 + $0.30) ÷ (1 − 0.35 − 0.04) = $152.942190. - Calculated unit price:
$152.942190 ÷ 8 = $19.117774, displayed as $19.12.
The inputs are illustrative, not an industry price. Preserve full precision until the displayed result, then verify that the rounded customer price still meets the intended floor. A platform fee should be replaced with the shop’s current documented rate.
6. Break-even and profit checks
The U.S. Small Business Administration describes break-even as the point where total cost and total revenue are equal. For this order model, set target margin to zero while retaining applicable selling fees. Break-even revenue still needs to cover the percentage fee and fixed fee.
Modeled profit = customer revenue − variable selling fees − fixed selling fees − batch operating cost
A break-even price is a warning boundary, not a normal selling target: it leaves no profit beyond labor already included as cost. The break-even guide separates order break-even from monthly fixed-cost break-even and explains why a labor-excluded floor answers a different question.
Checks before relying on a result
- Confirm that the quantity means sellable units rather than production attempts.
- Use current landed costs, including inbound freight attributable to the materials.
- Count active setup and unit labor; do not silently set owner time to zero.
- Verify whether each fee is charged once per order, once per item or as a percentage of revenue.
- Keep absorbed shipping separate from shipping charged to the customer.
- Record the source and date for any supplier, marketplace or utility input that may change.
The IRS recordkeeping guidance recommends retaining documents that identify the payee, amount, date and business purpose. It does not prescribe a sublimation price, but those records make the inputs traceable when a quote is reviewed.
Source review: August 3, 2026. Use these formulas in the free calculator, or read the complete methodology and boundaries.