Which spreadsheet apps can I use with MothMargin?
The free sample is an .xlsx workbook and uses Excel table formulas. Formula behavior has not been verified in Google Sheets, LibreOffice, or other spreadsheet apps.
A resale workbook for thrift flippers
From thrift find to true profit.
Keep each sourced item connected to what you paid, what it sells for, and the fees along the way. MothMargin puts the resale math in one editable workbook.
One resale itemFollow the numbers
- Sourced item + purchase cost
- COST IN
- Sale price − marketplace fees
- SALE OUT
- True profit
- WHAT REMAINS
The resale workflow
Follow a find all the way to its margin.
Start with the item you sourced, then record the numbers that show what the sale leaves after its purchase cost and marketplace fees.
01 / SOURCE
Log the thrifted item
Give the find an inventory row and enter its purchase cost while the sourcing details are fresh.
02 / SELL
Add the sale and fees
Record the sale price and marketplace fees. The sample workbook includes editable fee presets and a manual fee override.
03 / REVIEW
See the true profit
See sale price less purchase cost and marketplace fees for each completed resale.
Inside the spreadsheet
Inventory in. Profit in view.
Review all nine inventory fields and the profit results for the same three fictional rows in the free sample workbook.
| Item | Purchase cost ($) | Marketplace | Fee rate | Fixed fee ($) | Manual fee override ($) | Marketplace fees ($) | Sale price ($) | True profit ($) |
|---|---|---|---|---|---|---|---|---|
| Vintage wool coat | $22.00 | eBay | 13% | $0.30 | — | $8.62 | $64.00 | $33.38 |
| Ceramic planter | $12.50 | Etsy | 10% | $0.25 | — | $4.05 | $38.00 | $21.45 |
| Denim jacket | $18.00 | Depop | 0% | $0.00 | — | $0.00 | $52.00 | $34.00 |
The full nine-column layout, including the blank manual override and calculated fees.
| Item | Sale price ($) | Purchase cost ($) | Marketplace fees ($) | True profit ($) |
|---|---|---|---|---|
| Vintage wool coat | $64.00 | $22.00 | $8.62 | $33.38 |
| Ceramic planter | $38.00 | $12.50 | $4.05 | $21.45 |
| Denim jacket | $52.00 | $18.00 | $0.00 | $34.00 |
Compare each sale with its purchase cost and marketplace fees to see true profit.
These rows are fictional. Poshmark’s percentage and fixed-fee preset inputs are blank because its source research, applicable region, and source date were not supplied; its automatic fee and true-profit results stay blank until both inputs are completed. Depop is an editable provisional 0% + $0.00 placeholder; no seller-paid component is verified, and its applicable region and source date were not supplied. Etsy remains an illustrative estimate. The eBay 13% + $0.30 preset is an editable illustrative placeholder, not source-verified; its applicable region and source date were not supplied. Check your current fees and update the preset inputs before relying on any values.
Questions
Questions about MothMargin
How do I enter marketplace fees?
In the sample’s Sample Inventory sheet, choose eBay, Etsy, Poshmark, or Depop to look up the editable percentage and fixed-fee inputs on Fee Setup. Poshmark’s inputs are blank because the source brief, seller-paid components, fee basis, applicable region, and source date were not supplied; its automatic fee and true-profit results stay blank until both inputs are completed. Use 0 for a component confirmed not to apply. Buyer-paid amounts are excluded. Depop is a provisional editable 0% + $0.00 placeholder, not a verified fee; no seller-paid component or fee basis is verified, and its applicable region and source date were not supplied. Etsy is an illustrative estimate. eBay’s 13% + $0.30 is an editable illustrative placeholder, not source-verified; its applicable region and source date were not supplied. Check your current seller terms and update the Fee Setup inputs. A per-item Manual fee override replaces the preset calculation and can include processing or other charges.
How does MothMargin calculate true profit?
The sample calculates true profit as sale price − purchase cost − marketplace fees. Its fee formula rounds the percentage part to cents, adds the fixed fee, then rounds the fee total to cents. A Manual fee override replaces that calculated fee total. Other costs are not automatically subtracted.
Start with your next find
See the workbook behind the numbers.
Download the three-row sample or get the complete editable MothMargin workbook.
Download the free sample workbook (.xlsx)
$29 one-time