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Software ==>	PowerPivot (72 exercises)
Topic ==>	Calculated columns (7 exercises)
Level ==>	Relatively easy
Subject ==>	Power BI training

Total sales by weekday, using simple two calculated columns

This exercise is provided to allow potential course delegates to choose the correct Wise Owl Microsoft training course, and may not be reproduced in whole or in part in any format without the prior written consent of Wise Owl.

Before you can do this exercise, you'll need to download and unzip this file .

The aim of this exercise is to show the total value of transactions according to the day of the week:

It looks like Friday was the most popular day, but not by much.

Here's what the PowerPivot field list should look like (eventually!):

The two fields of interest for our pivot table.

To start, if you haven't already done so run the script in the above folder to generate the MAM database (not for commercial use or copying), then create a new workbook.

Connect to the tblTransaction and tblPos tables, and create a new calculated column in the latter which gives the weekday.

You can use either =format([PosDate],"dddd") or =format(Pos[PosDate],"dddd"), depending on how you create the formula.

Now use the RELATED function in the tblTransaction table to show the weekday alongside the quantity sold, and use this to create the pivot table at the start of this exercise.