Interactive portfolio demo

Know the margin before you add another tray.

Change nine assumptions and see the weekly revenue, listed costs, profit, margin, and break-even volume update immediately.

No login · no network request · no stored inputs · example assumptions only

Weekly assumptions

Change the numbers

Estimated weekly result

Profit after listed costs$52
Revenue
$315
Total listed costs
$263
Margin
16.5%
Break-even volume
16 trays

Break-even includes the labor value and overhead entered above. Taxes, spoilage, unsold stock, delivery, equipment, and local market demand are not inferred.

What it demonstrates

A useful tool can be the sales page.

Visitors get a specific answer before they contact the business. The interface handles valid zero values and impossible break-even conditions without sending the assumptions anywhere.

Truth boundary

An estimate is not market validation.

The calculator does not know local prices, demand, yield consistency, food rules, taxes, or actual sales. A real client version would use agreed formulas and reviewed assumptions.

Have a useful formula?

Turn it into a website people can use.

A bounded calculator or quote-tool pilot starts at $149 after the inputs, outputs, edge cases, funding, and acceptance checks are agreed.

Request a fixed-price tool plan