Power BI DAX Tutorial: CALCULATE Function Explained with Real-World Examples (Beginner Guide)

In this Power BI tutorial, you'll learn how to use the CALCULATE function in DAX to filter and aggregate sales data by segment. We'll build two practical measures step by step: ✅ A segment-filtered sales measure using CALCULATE () ✅ A % share measure using CALCULATE () + DIVIDE () + ALL() to calculate each segment's contribution to total sales This is part of our Power BI Dashboard Beginner Series, built on a real-world Superstore dataset. You'll see exactly how CALCULATE () changes filter context, and why ALL() is essential when calculating percentages that stay accurate across different filter states (like slicers). 📊 What you'll learn in this video: How the CALCULATE function works in DAX Writing a segment-based sales measure (Consumer, Corporate, Home Office) Calculating % share of total sales using DIVIDE and ALL Common mistakes to avoid with ALL vs ALLSELECTED 🔗 Interested in the previous DAX tutorial where we discussed the IF() and SWITCH() functions? Here is the link: Full video:    • Power BI DAX Tutorial: Learn How to Write ...   🔗 Interested in the first video where we briefly touched upon the CALCULATE () function? Feel free to check out the previous videos: Part 1:    • Power BI Full Course for Beginners: Build ...   Part 2:    • Power BI Full Course for Beginners: Build ...   Part 3:    • Power BI Full Course for Beginners: Build ...   💬 Got questions about DAX or Power BI? Drop a comment below! #PowerBI #DAX #DataAnalytics #PowerBITutorial #CALCULATE #BusinessIntelligence