{"repo":"AmirhosseinHonardoust/KPI-Denominator-Truth","free":true,"listed":false,"github":"https://github.com/AmirhosseinHonardoust/KPI-Denominator-Truth","clone":"git clone https://github.com/AmirhosseinHonardoust/KPI-Denominator-Truth.git","description":"A long-form analytics article on why KPIs fail when the denominator silently changes. Covers denominator contracts, eligibility vs observed vs attempted populations, drift/coverage failure modes, mix shifts, time alignment, and a practical audit checklist to design decision-safe ratio metrics that don’t lie.","language":null,"stars":11,"topics":["analytics","business-intelligence","cohort-analysis","conversion-rate","dashboarding","data-analysis","data-literacy","data-quality","data-science","decision-making"],"license":"MIT","category":"analytics","readme_excerpt":"Your KPI is Lying Because Your Denominator is Wrong --- Most KPI disasters don’t happen because someone used the wrong chart. They happen because someone used the wrong denominator and nobody noticed until the business made decisions on an illusion. If you’ve ever seen any of these: - “Conversion rate dropped overnight but revenue is fine.” - “Retention improved but support tickets exploded.” - “DAU is stable but growth feels dead.” - “Our model got better but customer complaints went up.” - “The funnel looks worse after we improved the product.” …there’s a good chance the KPI wasn’t lying because the numerator was wrong. It was lying because the denominator silently changed. This article is a practical guide to: - how denominator mistakes happen, - what “denominator drift” really is, - the patterns that cause it, - how to detect it early, - and how to design KPIs that survive reality. --- The uncomfortable truth: most KPIs are ratios with hidden contracts A KPI ratio is never “just math.” A ratio is a contract between: - what you count (numerator) - and who you claim you’re measuring (denominator) Example: - Conversion rate = Purchasers / Visitors Looks simple. But the contract is: “Visitors represent people who had a real chance to purchase .” That contract is almost always violated. Because “visitors” includes: - bots - crawlers - accidental opens - duplicate sessions - logged-out users who can’t checkout - regions you don’t ship to - traffic from broken campaigns - produc","default_branch":null,"files":null,"tree":[],"storefront":"/r/AmirhosseinHonardoust","claimed":false,"request_supported":{"post":"https://gitbuyer.com/r/AmirhosseinHonardoust/KPI-Denominator-Truth/request-supported","requests":0},"note":"indexed from public GitHub; nothing is for sale on this page. Clone it from GitHub. Paid listings live at /search."}