[FREE CALCULATOR · ABOUT 60 SECONDS]

[The question the tool answers, in their words]

[One line: what goes in, what comes out, and that nothing is gated until they want it emailed.]

Your product

$
$

Fulfillment fee: $5.42 a unit. Large standard, in Amazon's $10–$50 price band, non-peak.

What actually reaches you, monthly

$6,731

of $41,988 revenue, 16.0% margin, $5.61 a unit. Updates as you type.

Every dollar of revenue, left to right. The warm band is yours.

Referral fee15%−$6,298
Fulfillment fee$5.42/unit−$6,504
Fuel and logistics surcharge3.5%−$228
Inbound to Amazon$0.45/unit−$540
Storage and long-term fees1.5%−$630
Returns5%−$2,099
Ad spend18% TACoS−$7,558
Landed unit cost$9.50/unit−$11,400
Take-home$6,731
Per unit$5.61
Break-even TACoS34.0%

Thin, the margin is doing all the work

You are profitable, but not by much. A fee change, a returns spike, or three points of TACoS drift takes this to zero. Fix the stack before you buy more traffic.

0%12% fragile20% healthy30%
+$2,540Change in take-home at a 10% price increase

Assumes unit volume holds. Test it on one SKU for a fortnight before you move the catalogue.

Email me this breakdown

[Privacy note: we send the breakdown and one follow-up. Unsubscribe anytime.]

Brands we support

  • Baden Sports
  • Endangered Species Chocolate
  • Duke Cannon Supply Co.
  • Glo Skin Beauty
  • Hydrotech Products
  • KUIU
  • LashBox LA
  • Majority
  • Pro Lash
  • Nutribites Pet
  • SmartStraps
  • Tour Striker
  • Blackline Car Care
  • Beurer

[Name the cost most sellers miss]

[One line on the price-band trap: a price rise that lowers take-home.]

FULFILLMENT BAND

[Fees now band by item price. Say what that means at their price.]

REFERRAL FEE

[The category percentage, taken off the sale price.]

THE UNPUBLISHED LINES

[The costs Amazon leaves off the rate card.]

The assumptions, in plain sight

Fee schedule

[Which fee period is loaded, and the date it rolls over.]

Fuel and logistics surcharge

[The rate used, and that Amazon has named no end date.]

Inbound per unit

[Placeholder default, not an EC benchmark. Editable in the calculator.]

Last checked

[The date the fee table was last verified.]

[Built by someone who runs these numbers every day]

[Two sentences on who built the model and what it is based on.]

Client verbatim

[“One line from a user or client, verbatim. Never paraphrased.”]

[Name, title, brand. Claim ID if it carries a number.]

Before you trust the number

Is my data saved?

Where do the fee numbers come from?

How current is this?

[Want us to find the margin in your listings?]

[One line tying the review to the number they just saw.]