Coforge Interview Question 🔥 12-Month Rolling Average Sales in Power BI (DAX Explained)

Recently in a Coforge interview, candidates were asked to calculate a 12-month rolling average sales in Power BI using DAX.

Many candidates knew the formula but failed to explain WHY it works and HOW filter context changes the result.

In this video, I explain:
✔ How CALCULATE evaluates filters first
✔ Why VALUES() returns different results at month level
✔ How DATESINPERIOD creates rolling windows
✔ Why rolling average shows same value at month level but changes at total
✔ Step-by-step DAX logic with real interview explanation

This video is perfect for:
Power BI Developers
Data Analysts
DAX learners
Interview preparation (Coforge, Accenture, TCS, Deloitte, Genpact)

👉 If you want to crack Power BI interviews by understanding concepts, not memorizing formulas, this video is for you.

🔔 Subscribe for real interview-based Power BI & DAX challenges.

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Видео Coforge Interview Question 🔥 12-Month Rolling Average Sales in Power BI (DAX Explained) канала PowerUp with Rudransh