Database queries in Excel

With Power Query, you can do Groups. This one counts stocks by country.

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Sum of Market Values By Country

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Power Query is a free AddIn for Excel 2010 and 2013, and is built-in functionality from Excel 2016 onwards (where it is referred to as "Get & Transform Data").

It is a powerful yet simple way of getting, changing and using data from a broad variety of sources, creating steps which may be easily repeated and refreshed. I strongly recommend learning how to use Power Query - it's among the most powerful functionalities of Excel.

- Follow this link to learn how to install Power Query in Excel 2010 / 2013.

- Follow this link for an introduction to Power Query functionality.

- Follow this link for a video which demonstrates how to use Power Query code provided.

As to your second question. You can run joins to compare the data from old to new in Power Query. If you are new to Power Query, then you may wish to pick up Ken Puls Book on Power Query. Google Ken Puls and Power Query. The book is available on Amazon.

Formula for sales by country:

Formula:

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Market Cap Average by Country

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To compare different years.

Bring each file table into the Power Query Editor.

Depending on what you wish to compare, you may want to group each of them separately and then merge them by joining them on a common(s) field. If you have a prior period you wish to demo and compare to the current one, you can upload and I will give it a shot for you. I would assume you wish to compare based upon the three criteria we have done for the current period.