A summary of the changes for the September 2017 update to Power BI Desktop
Part four of a six-part series of blogs

The September 2017 Power BI Desktop update introduces ribbon charts, a feature to explain the increase or decrease for any chart point and a drill-through feature allowing you to temporarily switch to a summary page.

  1. What's New in Power BI Desktop - September 2017 Update
  2. Drill-through to a Summary Report Page
  3. Ribbon Charts
  4. Automatically explaining the increase or decrease (this blog)
  5. Showing Keyboard Short-Cuts
  6. Preview Features

For a cumulative list of all of the updates to Power BI Desktop in the last few months, see this blog.  Our two-day Power BI Desktop course always uses the latest version of the software.

Posted by Andy Brown on 12 September 2017

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Automatically explaining the increase or decrease

It seems a shame to waste the ribbon chart I created for the previous part of this blog, so let's use this to show how this new feature works:

Explain the increase

I can see that sales for the North region shot up in 2015, but why? And how?

If you right-click and choose the preview option shown above, you may find out:

Waterfall chart

Power BI Desktop creates a waterfall chart showing the make-up of the difference, with a text description.

Note that you can change the chart type by clicking on the icons at the bottom:

Regression chart

Here I've gone for a regression chart, by clicking on the appropriate icon at the bottom.


This is a pretty impressive feature (which obviously isn't limited to ribbon charts!).  Note, however, that it is still in preview mode (as the footnote at the bottom of the analysis shows).

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