# Tableau analysis. part 3 only

Part III ( Difficulty: Intermediate) In order to create the Treemap for the Cost of

Goods Sold (COGS), you will have to link two data files. Tableau will do this

automatically. Start by uploading the sales file (you can use the same workbook as the

previous investigations; however, we always recommend you save your work as you go). Once

the sales file is uploaded, upload the purchase price file. The files should be a center join

based on Brand. Once the files are linked, verify your files uploaded and joined properly. The

total Sales Dollars should be \$483,894,339. Verifying your COGS of \$347,414,180 will trickier

as we need to create the variable (to be discussed below). To determine the COGS, you’ll have

to create the COGS variable by going to the Analysis Tab and clicking on a Create a

Calculated Field . Drag Purchase Price and then multiply by Sales Quantity. You

should see your new variable under the Measures .

• Once the files are merged, you’ll have to calculate the following variables

– COGS – \$347,414,180

– Gross Profit: Gross Profit = Sales – COGS

– Gross Profit %: Gross Profit / Sales

• Create a Scatter Graph comparing each store’s Sales and Gross Profit.

– Does the relationship appear to be linear?

– What is the equation of the trend line? Hint: Use the Analysis Tab and drag it

onto your Worksheet .

– Why wouldn’t all of the stores be exactly on the trend line since each store has

• Create a Worksheet to determine the percentage that each Store contributes to the

overall Gross Profit. Use the Classification variable to filter based on spirits and

wine. Convert your Worksheet into a Stacked Bar Chart . What percent does store

76 contribute to the overall gross profit? What percent does Store 76 contribute to

Gross Profit based on wine only? Spirits only?

• Individually, which two stores have the highest Gross Profit %? Individually, which

two stores have the lowest Gross Profit %?

• What kind of decisions could be made when examining a store’s contribution to overall

gross profit for the company? What kind of decision could be made when comparing

individual store gross profit percentages?

Part