Calculate the economic floor

What you’ll get

• Primary pricing decision: List per-sale costs.
• Working calculation: List fixed and ongoing costs.
• Quality check: Calculate contribution per sale.

Before you begin

Bring the exact package, current costs, expected support, buyer alternatives, and available funnel data. Set a 45–60 minutes timer. Keep facts, estimates, and assumptions in separate columns.

Conversion checkpoint

Price is interpreted with the promise, proof, alternatives, and checkout experience. Do not read low sales as a price problem until you have enough qualified visits and can see where the buyer path loses momentum.

List per-sale costs

Depending on the setup, these may include payment processing, platform fees, affiliate commission, taxes collected or remitted by the seller, per-customer software, fulfillment, support labor, and expected refund/chargeback cost.

Do not assume that digital delivery means every sale has zero cost.

List fixed and ongoing costs

• Design and production
• Editing and accessibility work
• Software subscriptions
• Product updates
• Customer support
• Marketing content
• Paid acquisition tests
• Accounting, tax, legal, or compliance work where applicable

Calculate contribution per sale

Use a simple internal model:

Net revenue per sale
= customer price
− discounts
− transaction/platform costs
− affiliate or partner commission
− expected per-sale tax cost borne by the seller
− expected refund/chargeback cost
− variable support or fulfillment cost

Then:

Contribution margin % = net contribution per sale ÷ customer price × 100

This is a planning model, not tax or accounting advice. Confirm your actual obligations and fee structure for the seller entity and markets involved.

Finish line

• The priced package and boundaries are explicit.
• Costs and assumptions are visible.
• The test changes only one meaningful variable.
• The next price change has a reason and decision rule.

Build it in Tapmy

Apply the price to the live product in Tapmy, record the hypothesis and date, and keep the offer and traffic source stable long enough to interpret the test.