Observed arrival · 2026-09-14
PromoMargin Checks Whether a Sale Still Makes Money
A browser-based promotion planner that tests stacked discounts against product costs and flags SKUs falling below a contribution-margin target.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Field notes
The workflow starts with a UTF-8 CSV containing a unique SKU, selling price, and cost, then applies sale discounts, extra coupons, fees, and other per-unit costs against a chosen contribution-margin target. The page shows a worked 20% sale plus 10% coupon scenario that lands at 27.56% against a 30% target. The free browser version covers 25 rows; a stated offline kit supports up to 50,000 rows within an 8 MB file limit.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue