Marketplace PresetsCost BreakdownROI Calculator

Net Profit

$16.99

Profit Margin

56.7%

ROI

169.9%

Marketplace Fee

$0.00

Cost Breakdown

Product Cost$10.00
Shipping$3.00
Marketplace Fee (0%)$0.00
Additional Costs$0.00
Total Cost$13.00
Break-even selling price$13.00

FAQ

What marketplace fees are included?
Presets for Amazon (15%), eBay (13%), Shopify (2.9%), Etsy (6.5%), Walmart (8%), and TikTok Shop (5%). You can also set a custom fee.
How is ROI calculated?
ROI (Return on Investment) = (Net Profit / Cost Price) x 100. It shows how much return you get relative to your investment.
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About Profit Calc

What this tool does

General-purpose calculators cover percentages, dates, time differences, BMI, tips, taxes, salaries, loans, compound interest, and dozens of everyday math problems. Results are computed instantly in the browser.

Why use this tool

Quick calculations come up constantly: splitting a bill, figuring out how many days until a deadline, converting an hourly rate to an annual salary. Having a purpose-built calculator is faster and less error-prone than a spreadsheet.

How it works

Each calculator applies the relevant mathematical formula to your inputs. Financial calculators use standard amortization and compound-interest equations. Date calculators leverage JavaScript's Date object with timezone-aware arithmetic.

Pro tip

For loan and mortgage calculations, small changes in interest rate matter more than you think. Try adjusting the rate by 0.25% to see how it affects total interest paid over the life of the loan.

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