How to use this calculator
- Enter product price.
- Add platform fee percentage.
- Add payment processing percentage.
- Enter monthly sales volume.
Calculate how much platform, payment, and software fees reduce digital product revenue. Compare fee ratio and net revenue to decide whether your platform or pricing needs adjustment.
This result estimates how much each sale loses to platform and processing fees.
Fixed subscriptions should be allocated per sale when sales volume is low.
A $49 product with 5% platform and 3% payment fee has $3.92 fee per sale.
The lowest-fee platform depends on product price, monthly volume, payment method, and subscription costs.
Gumroad fees can vary, so calculate your effective fee ratio from actual transaction data.
Payment processors usually charge a percentage plus possible fixed fees.
Platform fees reduce net revenue per sale and lower profit margin unless price or volume offsets them.
A strong fee ratio is often below 10%, depending on platform value and included services.
| Metric | Meaning |
|---|---|
| Health Score | 0-100 score combining profitability, efficiency, risk, and opportunity signals. |
| Scenario Comparison | Compares the current result with practical improvement scenarios. |
| Risk Indicator | Flags profit, refund, acquisition, capacity, or delivery risk. |
| Opportunity Gap | Shows the gap between current performance and the target decision metric. |