In order to apply customization, click on “Customize” button on report create or report edit page.
Double click on the Data Labels icon. The following modal window will appear.
Select the measure on which data label is to be applied, formatter and number of decimal places. You can add more measures, if applicable.
Click Ok. You will see that the Data Labels icon is highlighted.
Click on the small tick to apply the customization.
Thanks,
Helical Insight