How to format % and text

Hi ,  AnaAlbano 

According to your description, you want to custom your dara label in your visual.

For your need , you can use the new feature in Power BI Desktop, you can open it in the "Options->Preview features", if you do not have it , you need to update your Desktop version:

Then here are the steps you can refer to :
(1)This is my test data:

I create a measure to show the percentage in the visual:

Percentage Measure = SUM('Table'[Value])

 

(2)Then we can open the dynamic format for this measure:
Then we can put this in the dax box:

IF([Percentage Measure]<0.01,"<1%","0%")

 

Then we can meet your need , the result is as follows: 

 

For more information, you can refer to :
Create dynamic format strings for measures in Power BI Desktop - Power BI | Microsoft Learn

 

Thank you for your time and sharing, and thank you for your support and understanding of PowerBI! 

 

Best Regards,

Aniya Zhang

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