Same $100 · locked hub formulas

$88.80 vs $86.00

Whatnot keeps $2.80 more on this $100 sale sketch (before COGS / monthly plan). Official first-paint from /whatnot-keep/ and /ebay-keep/.

Whatnot KEEP
$88.80
eBay KEEP
$86.00
Delta (Whatnot − eBay)
+$2.80

Compare / Start Shopify — keep $96.80 on $100 (Basic Payments · Impact · FTC) · planning only · compare ranker · marketplaces compare

I get commissions for purchases made through links in this post. Compensated as a Shopify affiliate.

Official first-paint ONLY — rates locked to /whatnot-keep/ (#out $88.80) and /ebay-keep/ (#out $86.00). No invented referral %. Last verified 2026-09-18.

Last verified: 2026-09-18 · Locked hubs /whatnot-keep/ (#out $88.80) · /ebay-keep/ (#out $86.00) · planning only · Fee changes · live ranker

Whatnot lock: other 8% + 2.9%+$0.30 → KEEP = sale − 0.08×sale − (0.029×sale + 0.30). eBay lock: 13.6%+$0.40 → KEEP = sale − 0.136×sale − 0.40.

Reverse / target KEEP · locked hub formulas

Target KEEP $ → required sale ( Whatnot vs eBay )

Enter the net you want after fees. We solve the sale each locked formula needs. Same algebra as /seller-fees/break-even/. No invented fees.

Whatnot sale
—
eBay sale
—

Reverse: Whatnot sale = (KEEP + 0.30) / 0.891 · eBay sale = (KEEP + 0.40) / 0.864. Forward check on $100: Whatnot $88.80 · eBay $86.00.

Whatnot vs eBay fees calculator — keep $88.80 vs $86.00 on $100

Live-selling / auction SERP pack: same sale on Whatnot and eBay using only locked KEEP hubs — not a slogan, and not an invented referral row. On $100, Whatnot KEEP is $88.80; eBay is $86.00 (Whatnot ahead by $2.80). Board: marketplaces KEEP compare.

Not affiliated with Whatnot or eBay. Shopify Impact links are disclosed affiliates. First-paint numbers match /whatnot-keep/ and /ebay-keep/ as of 2026-09-18. Confirm live rates on each platform. Planning only — not tax or legal advice.

Same-$100 KEEP compare (official locks)

PlatformOfficial starting fee (hub lock)KEEP on $100Hub
WhatnotOther categories 8% + Stripe 2.9%+$0.30$88.80/whatnot-keep/
eBayUS most categories (no Store) 13.6%+$0.40$86.00/ebay-keep/

Winner on this $100 sketch: Whatnot by $2.80 vs eBay (processing keep — not traffic). Disclosed Shopify Impact affiliate under the card.

What each hub actually locks

Whatnot → KEEP $88.80 on $100

Formula on hub: KEEP = sale − 0.08×sale − (0.029×sale + 0.30). Sources linked from Whatnot KEEP.

eBay → KEEP $86.00 on $100

Formula on hub: KEEP = sale − 0.136×sale − 0.40. Sources linked from eBay KEEP.

When the gap moves (still official only)

FAQ

How much do you keep on $100 with Whatnot vs eBay?

Whatnot KEEP $88.80 (other 8% + Stripe 2.9%+$0.30). eBay KEEP $86.00 (most cats 13.6%+$0.40). Whatnot keeps $2.80 more on this $100 sketch. Planning only.

Are these the same formulas as /whatnot-keep/ and /ebay-keep/?

Yes. First-paint only those locked official starting formulas. Whatnot: KEEP = sale − 0.08×sale − (0.029×sale + 0.30). eBay: KEEP = sale − 0.136×sale − 0.40. No invented referral %.

Is monthly software inside KEEP?

No. Monthly plan / subscription opex is typed separately on hubs (default $0) and never baked into per-sale KEEP.

Is this affiliated with Whatnot, eBay, or Shopify?

Not affiliated with Whatnot or eBay. Shopify Impact links are disclosed affiliates (FTC). Educational planning only. Confirm live fees on each platform.

Keep $96.80 on Shopify — Start Shopify (Impact · FTC) Whatnot KEEP hub eBay KEEP hub Marketplaces compare

Related

Break-even list price Seller fee index Marketplaces KEEP compare TikTok Shop vs Shopify Facebook Marketplace vs Mercari Mercari vs eBay Etsy vs eBay Whatnot KEEP $88.80 eBay KEEP $86.00 Compare marketplaces