From costs to
a considered price.
Use the calculators to understand your economics before agreeing to a price. The example costs are starting points, not industry benchmarks.
1. Choose the right calculator
Baking and crafts calculate a complete batch, then divide its materials, labour and overhead between the number of sellable items. Cleaning calculates one job. Use consistent units: if an ingredient costs $4 per kilogram and you use 250 grams, enter quantity 0.25 and unit cost 4.
2. Account for the whole job
- Name the scenario and choose USD or CAD. This labels the amounts; it does not convert currency.
- Enter every cost line and the quantity used. Include travel, shipping subsidies or other expenses as extra lines.
- Enter total hours for the batch or job and an hourly rate. For a team, use total worker-hours: two people working three hours means six hours. Different pay rates can be entered as separate cost lines; avoid counting them again here.
- Add overhead allocated to this batch or job, and packaging for each sellable item. Divide your monthly overhead across expected jobs or batches before entering it.
- Enter your actual selling/payment fees. The percentage applies to the before-tax item/job price. Fixed fees apply to every item/job sold in this model. For a single transaction covering a batch, divide its fixed fee by the number of items. If fees are charged on tax or shipping too, include an appropriate allowance yourself.
3. Set a margin and test a price
Margin is profit divided by revenue. Markup measures the increase over cost, so they are different. See Shopify’s explanation of margin and markup.
Cost per unit = (materials + labour + overhead) ÷ units + packaging Target price = (cost per unit + fixed fee) ÷ (1 − fee rate − target margin) Profit = selling price − cost per unit − percentage fees − fixed fee
Rates in the formula are fractions: 30% is 0.30. Target prices round up to the next cent; intermediate calculations retain precision. Margin plus percentage fees must be below 100%. A zero selling price has no meaningful margin percentage.
For example, with costs of USD 10, no fees and a 25% target margin, the price is USD 13.34. Adding 25% to costs would instead give USD 12.50 and a 20% margin.
The result is estimated contribution after the costs you entered, not guaranteed business net profit. Taxes, demand, unpaid sales time and any omitted expenses are outside the estimate. The calculator does not file taxes, retrieve marketplace fees or exchange currencies.
4. Save, compare and export
- Choose Save scenario to keep it in this browser. Loading a scenario lets you edit and update it; Save a copy preserves a separate version.
- The saved list shows prices and profits for comparison, with each currency labelled. You can keep up to 30 scenarios per calculator.
- Download a JSON backup to preserve editable inputs. Import it into the same calculator on another device. CSV is a costing report for spreadsheets, not an editable backup.
- Print the costing sheet, or choose your browser’s Save as PDF option. The report contains your internal costs; review it before sharing.
- Use Copy price summary and open Emberkit Invoices to create a customer quote. Paste the amount manually; no customer information transfers automatically.
Your data and your device
No calculator inputs or scenario contents are sent to Emberkit servers by this product. Saved data lives in local browser storage on this device, can be read by anyone using this browser profile, and is not encrypted by the calculator. Hosting still receives ordinary page requests. Private browsing, clearing site data or switching browser can remove or hide saved scenarios. Keep exported backups for important estimates. Delete scenarios individually in the saved list. Unsaved changes are not automatically backed up.