Calculated Field

Question

I am trying to create a simple pivot table which will tell me how many community residents reported a particular problem, and what percentage of them reported each problem type. I have a data set with name, and then columns for each type of problem. Here's an small sample of the data set:

I have created a pivot table which sums each of these columns and also provides me the total number of people who reported any type of problem at all. Here's what I have:

I want to add a second column to this pivot table that gives the percent of times each problem type was reported. Sounds simple, but because of the structure of the original data set, I can't figure out how to do it. I can set up formulas outside of the Pivot Table which reference the table, but in doing so I forfeit the ability to graph the percentages on a pivot chart. Any ideas how to create a calculated field for this pivot table?

Just to be clear, what I want is something like this, except all contained in the structure of the pivot table:

Edit: I've changed the example of the data set. Here's an explanation of the pivot table. The values under the "# Reporting Issue" column are counts of all the 1's under each corresponding column in the data set. This meant that I had to add each row to the pivot table independently, as you can see here:

I'm open to the idea that I need to change the formatting of the data set, but I'm not sure of the best way to do it. This was set up initially because it allowed for easy compilation into a data table, but Pivot Tables seem to be a different story.

Hopefully this edit clarifies things.

Answer 1

You need to unpivot your data so that you turn it into a Flat File...something that the PivotTable can consume properly.

The easiest way is to use something called PowerQuery, which is baked in to Excel 2016 but available as a free addin from Microsoft for any other versions. Google PowerQuery Unpivot and you will turn up hundreds of tutorials, such as this one from my good pal Chandoo . PowerQuery looks slightly daunting at first to a first time user, but it is freakin easy once you get your head around how to use it. PQ is by far the best addition to Excel in years. PowerPivot being a close second.

If you can't install PowerQuery, then you can use your current data structure to make a 'staging pivot', and then drag the Values label that will appear in the Columns area to the bottom of the ROWS pane, like in this excerpt from a book I'm writing:

Note that my Year categories are equivalent to your Issues categories.

That will emulate the flat file layout you’re after. All you need to do then is turn this intermediate PivotTable back into a normal range, change that Values heading to Issue, and add a Count heading and you’ve got the flat file you need to build a useable PivotTable.

You can also use VBA. Google Unpivot VBA and turn up hundreds of results, including this blazingly fast code I posted some time back. (Look for the code under the —Update 26 November 2013— heading.)

You can also use the DoubleClick extraction trick.