eBay & Mercari 90-Day Sold Comp, IQR & 13.25%-Fee Net Flip Margin Calculator
Calculate true realized sold medians (including Accepted Best Offers), Interquartile Range (IQR) spread, and net flip profit after eBay (13.25% + $0.30) and Mercari (10%) fees—or run a live 1-row comp check below.
Side-by-Side Unit Economics & Feature Coverage
| Provider / Actor | Price / 1,000 Comps | Accepted Best Offer Realized Price? | IQR Spread & Accessory Spam Filter? | Built-In eBay (13.25%) & Mercari (10%) Net Margin? | Real-Time Telegram / Webhook Deal Sniper? |
|---|---|---|---|---|---|
| ceadigital/ebay-sold-listings-comps-scraper (ebay-mercari-sold-comps-api) | $2.50 / 1k (Bronze+) $29/mo Direct (5k hits) | Yes — Resolves true Accepted Best Offer sale price | Yes — Computes Q1, Q3, IQR spread & strips cable/box spam | Yes (+$2.50/1k) — Returns exact net flip profit & sell-through rate | Yes ($0.02/alert) — Instant Webhook & Telegram sniper alerts |
| caffein.dev/ebay-sold-listings | $4.00 / 1k | Strikethrough list price only | No IQR outlier rejection | No fee / margin calculation | No built-in Telegram/Webhook sniper |
| fmchisti/fb-no-dealer-vehicles-scraper | Compute / Rental | FB Marketplace active price only (No eBay/Mercari sold comp join) | Dealer filter for vehicles only | No | No |
Calculate Realized Sold Median, IQR Spread & Net Flip Profit Across eBay, Mercari & Poshmark
EBAY NET FLIP PROFIT
$238.24
Fee: $138.76 · ROI: +36.7%
MERCARI (10% FEE) NET PROFIT
$272.50
Fee: $104.50 · ROI: +41.9%
IQR SPREAD & DEAL THRESHOLD
$140.00 IQR
37.8% Below Median (SNIPER ALERT)
Test 1 Real Lookup Right Now Before Buying a Pass
Click "Run 1-Row Free Preview" to test 1 live record...