Parameter single Value

Hi stefantaust ,

I believe you can use a workaround:

On the parameter table add a new column with the following code

Text Values = FORMAT(Parameter[Parameter], "00000")

This will give you the following table:

Create a new measure on the parameters: 

Parameter Value Min = IF(ISFILTERED(Parameter[Text Values]), MIN(Parameter[Parameter]))

Now use the new Text slicer to do your calculation:

Please see file attach.

Hi stefantaust 

This is the new Text Slicer:
https://learn.microsoft.com/en-us/power-bi/visuals/power-bi-visualization-text-slicer