How to Calculate Gross Profit Margin: The Core Formula and What It Tells You To calculate gross profit margin, use this equation: (Revenue − COGS) ÷ Revenue × 100. For example, if you sell a product for $100 and it…
How to Calculate Loyalty Program ROI: The Core Answer If you want to know how to calculate loyalty program ROI, here is the unvarnished formula I use after a decade running retention campaigns: divide the program’s incremental net profit by…
If you want to know how to calculate sales funnel performance without relying on black-box tools, the core formula is straightforward: for any stage, conversion rate = (count at stage N / count at stage N-1) × 100. But that…
When a founder asks me how to calculate SaaS free trial conversion, the textbook answer is simple: divide the number of trial users who became paying customers by the total number of trial sign-ups, then multiply by 100. But after…
The Reconciled Influencer ROI Formula (What Is the Formula for ROI for Influencers?) When a founder asked me last quarter, “how to calculate influencer roi without lying to myself?” I gave him a blunt answer: stop using raw revenue and…
When you need to know how to calculate expiration date for a product, the shortest answer is: take the production or pack date, add the specified shelf life (days, months, or years), and treat the printed expiry as the last…
How to Calculate Marketing ROI in Practice, Not Theory If you want the bare equation, here it is: marketing ROI equals (attributed revenue minus total campaign cost) divided by total campaign cost, multiplied by 100 for a percentage. But after…
How to Calculate Ad Spend ROI Without Inflating the Number The direct answer to “how do I calculate ROI on ad spend?” is (Revenue from ads − Ad Spend) ÷ Ad Spend. But after managing paid media for 40+ clients…
The Straight Answer: How to Calculate Your Age of Majority Date If you need the exact day someone becomes a legal adult, the manual method is: take the full birth date, add the jurisdiction’s statutory majority age in years, and…
The Core Concept: Why Dates Are Just Numbers (and What Breaks) To calculate the difference between two dates, subtract the earlier date from the later date. Most systems store dates as serial numbers: Excel assigns 1 to January 1, 1900,…