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Card 481 of 9992026-09-03 issue

Observed arrival · 2026-09-03

MarginSift: A Margin-Erosion Detector

marginsift.com Observed source
Editorial interest 79/100 Selection signal · not a rating of the site

A browser-based tool that compares old and new supplier price lists to find cost increases and SKUs falling below a target gross margin.

Landing page captured for the 2026-09-03 issue.

Field notes

The workflow compares old and new supplier price lists in CSV or XLSX format, matches SKUs, and calculates both cost movement and resulting gross-margin impact. It flags products below a user-selected target and accounts for new or discontinued SKUs. The sample table reports 17 products below a 30% margin target, 41 cost increases, and a largest single increase of 30.4%. The homepage says processing occurs in the browser without uploading data to a database.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

OpenPublic substance visible
PrettyNotable craft visible
ProPolished or operationally mature
NicheUnusually specific use

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marginsift.com

Landing page observed 2026-09-03. The live site may have changed.