Gross sales equal buyers × price. Subtract entered fees, refunds, advertising, affiliates and other direct campaign costs to estimate contribution before tax and fixed overhead.
Digital-product contribution calculator
Subtract entered direct costs from gross sales.
Before tax and any costs you did not enter.
The short answer
Gross sales equal buyers × price. Subtract entered fees, refunds, advertising, affiliates and other direct campaign costs to estimate contribution before tax and fixed overhead.
Use the guidance below as a starting framework, then adapt it to your audience, skills, location and available time.
What matters most
Focus on the variables that change the decision instead of copying a tactic without its context.
- Buyer count
- Average realized price
- Payment and platform fees
- Refunds
- Affiliate payouts
- Paid acquisition
- Support and delivery cost
Common mistakes to avoid
Most avoidable problems come from unclear positioning, unrealistic expectations or changing too many variables at once.
- Entering list price instead of realized price
- No refund allowance
- Treating creator time as free
- Ignoring support
- Calling contribution personal take-home
A practical way to start
Begin with a small, measurable version and use real audience behavior to decide what to improve.
- List direct costs
- Run a conservative buyer case
- Calculate break-even
- Review actual cost after launch
Your next steps
- Step 1
List direct costs
- Step 2
Run a conservative buyer case
- Step 3
Calculate break-even
- Step 4
Review actual cost after launch
Frequently asked questions
What costs should I enter?
Include direct launch costs such as transaction fees, refunds, affiliate payouts, paid ads and contractors; keep your definition consistent.
Does this include fixed costs?
Only if you enter them. The tool subtracts one combined cost amount.
Is the result taxable profit?
No. Accounting and tax treatment require qualified local advice.