Need Help Creating DAX Logic using Selected Value from Slicer Based on Table with No Relationships

[GBlair]

I'm new to Power BI and DAX.
I have a sales dataset and need to create a dashboard where users can select from a dropdown to group customers into "Bought" and "Did not Buy" buckets. The dropdown is custom and can contain individual products, product families, or groups of product families.
They can only select one item from the dropdown.

When they select an item the customer id is placed into the "bought" or "did not buy" bucket.

I modified what I think is a standard PowerBI "Financial Sample" spreadsheet.

I added Cust_ID and Product Family columns (sample below).

Here's what I need to be able to do:

The Sales column is total sales (all products) of customers that bought any Furniture product.
The L1 Sales are just the sales of any furniture product.
Thanks for your help, and let me know if I'm not making any sense.

[Fowmy]

@GBlair 

Please check the attached file if this is what you required.

[GBlair]

Thank you @Fowmy !
This got me a lot further than I was. It works for individual products. I also have the requirement that a Product Family (or group of individual products) could be selected. In that case I want to consider the customer to have bought if one or more products in the family were purchased.
But I think what you've provided allows me to play around with that requirement.
Thanks again.

[Fowmy · Accepted solution]

@GBlair 

Glad it helped you, I have modifed the code based on your new requirement, please check it out:

[GBlair]

Thanks for your help. This gave me exactly what I needed.

[some_bih]

Hi @GBlair please clarify your part, Table with No Relationships, you mean there is only one table with all necesary data in it?
If your table is in Excel and you need simplified filtering and some measures as on picture it could be done already in Excel with Power Pivot.

If everything above is yes, share sample data excel file with expected output for some input.