Illustrative economics
$120 price minus $40 direct cost leaves $80 contribution per unit. With $1,600 fixed monthly costs, this simple example breaks even at 20 units.
Fast feasibility test
Check the economics before building the full model
Start with a few business assumptions. See what must be true for your idea to work, and identify the next assumption to test with customers.
14-day trial · No card requiredIllustrative example
Price $120 · Direct cost $40
Contribution $80 per unit
Fixed costs $1,600 · Break-even 20 units
A transparent first check, with assumptions you can test and revise.
A clear path from input to outcome
- 01
Describe what you sell
Choose the revenue stream and unit: a subscription, project, transaction, or product. Use one consistent currency.
- 02
Add price, costs, and volume
Enter your selling price, delivery cost, expected sales, and operating costs. Keep unknown values visible instead of treating them as zero.
- 03
Review the trade-offs
Check contribution, operating result, and break-even where calculable. Compare lower and higher sales volumes before committing to spending.
See what changes the result
Compare volume scenarios and capacity limits. A nonpositive contribution cannot produce a meaningful break-even result.
Continue into your forecast
Keep the reviewed assumptions and build a connected financial model. Feasibility remains useful while other forecast inputs are still missing.
Common questions
What if I do not know an input?
Leave it unknown. Fountra identifies missing inputs and avoids presenting an incomplete model as a confirmed result.
Does a positive result validate my idea?
No. It shows what follows from your assumptions. Test demand, prices, and costs with real evidence.
A transparent first check, with assumptions you can test and revise.
Start with your own workspace and keep the next step clear.
WORK WITH FOUNTRA