A practical workflow
Follow the guide step by step
- 01
Enter a monthly unit estimate
Use a sales estimate from your own research or records. The app does not retrieve a marketplace sales rank, unit-sales feed, or demand forecast.
- 02
Enter the planned purchase quantity
Set the number of sellable units you are considering. Check pack size and minimum order requirements when converting that quantity into supplier packs.
- 03
Review months of cover
Compare planned inventory with your entered monthly sales estimate to see an approximate number of months of cover. This is a planning ratio, not a promised sell-through date.
- 04
Check cash tied up and supplier packs
Review the estimated purchase cash and packs needed. Compare this commitment with your available capital and supplier minimum order quantity.
- 05
Compare monthly contribution and local price context
Use estimated monthly contribution as a scenario based on your entered sales and per-unit audit. For Walmart, a locally observed price trend can add context after repeated visible-page scans.
Demand figures come from the seller
Monthly sales and planned quantity are inputs, not data pulled from Walmart, Amazon, Seller Central, or an external demand service. Margin Seller does not forecast demand or guarantee how quickly inventory will sell.
Use conservative estimates and validate sales velocity separately. A profitable unit can still be a poor buy if it requires too much cash or is likely to sit in inventory.
Cash commitment matters alongside ROI
Months of cover, cash tied up, supplier packs, minimum-order cash, and estimated monthly contribution answer different planning questions from unit profit and ROI. Review them together before placing a large order.
Observed price trend is available only when enough local Walmart history has been collected. It is context from visits on this browser, not a prediction of the next marketplace price.
Link demand to cost
Longer months of cover means more storage cost and more cash tied up in stock that has not yet sold.
If cover is longer than your target hold time, reduce the quantity or negotiate a smaller lot.
Use a range when monthly sales are uncertain
Build low, base, and high monthly-unit estimates from your own research or records, and note the source and date for each. Months of cover is planned sellable units divided by the entered monthly sales pace; using a lower pace produces a longer coverage estimate.
Compare the range with supplier lead time, reorder constraints, MOQ, and available cash. Monthly contribution is a scenario based on your entered unit estimate and audit result, not an independent sales forecast.
- Use comparable products and a consistent time period when forming a sales estimate.
- Estimate months of cover and cash tied up for each low/base/high case.
- Include lead-time and replenishment questions before turning an estimate into an order quantity.
Common questions
Frequently asked questions
Does the inventory planner know how many units a listing sells?
No. You enter the monthly unit estimate and planned quantity; the app calculates planning measures from those inputs.
What does months of cover mean?
It estimates how many months the planned units represent at your entered monthly sales pace. It does not guarantee a sell-through time.
Does monthly contribution include all business expenses?
It is an estimate based on the audit and seller-entered monthly sales. Costs or overhead not included in the audit remain outside the result.
How do I estimate how fast a product will sell?
Use rank trends, competitor signals, and your own sales. Margin Seller uses the sell-through you enter.
Ready to check a listing?
Put the assumptions to work.
Bring the visible listing facts and your own costs into a product audit before you commit to inventory.