Unit Economics & Cashflow Model

Enter your numbers. See your real margin — and where your cash goes before revenue arrives.

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Your numbers

Answer the questions below. Everything updates as you type.

Q1A How many units do you sell per month? Used to spread your monthly costs across each unit.
units / mo
Q1B How many units do you buy per order? Drives your batch size and the scale of the cashflow below.
units / order
Q2 What does your customer pay per unit? If you offer free shipping, make sure the delivery cost is baked into this price — otherwise add your shipping charge on top.
$
per unit
Q3 What do you pay your supplier per unit? FOB / factory price.
$
per unit
Q4 What does it cost to land each unit in your warehouse? Freight + customs + tariff, per unit.
$
per unit
Q5 What do you pay your warehouse per month? Storage fee. Per-unit cost = fee ÷ (units per order ÷ 2).
$
/ mo
Q6A What does your 3PL charge to pick and pack each order? Per-unit handling fee.
$
per unit
Q6B What does it cost to deliver each order to your customer? Include stickers, inserts, carton, and any other per-order packaging costs here — not just the carrier fee.
$
per unit
Q7 What does the platform charge you per month? Commission + referral fees.
$
/ mo
Q8 What do you spend on ads per month? Total monthly advertising and marketing spend.
$
/ mo
Q9 What percentage of units sold are returned? Refund cost = selling price × return % × units sold per month.
% of units sold

Your unit economics

What one unit actually earns you, once every cost is counted.

Naive margin
Real margin
Gross profit / unit
Gross profit / month
Revenue Cost Profit

Cashflow over one order cycle

From paying your supplier to collecting revenue. Each column is a month; cells show when cash actually moves — not when you book it on a P&L.

Two things to keep in mind.

The month each event appears in is an assumption based on a typical import cycle. Your actual timing will vary depending on supplier lead time, freight terms, platform payment schedule, and 3PL processing speed. Use the formula column as the logic and map it to your own calendar for a more accurate picture.

The math is also simplified — storage is modelled as a flat monthly fee, platform and ad costs are spread evenly, and returns are treated as a single end-of-batch event. Real cashflow will have more overlap and irregular timing. If you want a model built around your actual numbers, use the link below.

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