Amazon unit profit checker
Paste price, landed cost and Amazon fees. Get profit per unit and break-even ad cost.
Amazon unit profit checker is a free AI prompt for the job "Sell on Amazon". Give the instructions to an AI assistant that supports the required files and tools, then review its output.
Free · No account · Made by AI Blocks · Level: beginner · Thinking: low
What it does
Amazon takes a referral fee, a fulfilment fee, storage and returns on top of your cost. Sellers who count only the referral fee are often surprised by how little is left. This prompt puts each fee on its own line from the figures you give it, so the answer is current. It then finds profit per unit, the most you can spend on ads for one sale, and how the product sits against common rules of thumb.
You give it
- Selling price and landed cost (required): product, freight, duty.
- Amazon fees (required): referral, fulfilment and storage, taken from Amazon's revenue calculator today.
- Return rate and ad spend per sale (advised).
- Cash you can afford to lose (optional).
You get
- Profit per unit before and after ads
- Break-even ad cost per sale
- A rules-of-thumb check
- The biggest cost line
Use it when
- You are checking a product idea before ordering stock.
- Amazon fees changed.
- Ad spend seems to be wiping out your profit.
How to use it
- Copy the prompt and paste it into a chat with Claude, ChatGPT or Gemini.
- Under it, paste your details: selling price and landed cost; amazon fees; return rate and ad spend per sale; cash you can afford to lose.
- Send it and read the answer against the checks.
- If a line says MISSING, add that detail and send it again.