You will have the opportunity to change the format of the values in the Slider from the Format tab. By default all values will use the generic format, but you may wish to make this more specific.
1. Select the Slider that you want to open the Format contextual tab for.
2. From the Formatting section select the Choose Formatting button.
Figure 1: The Choose Formatting button is highlighted in the Ribbon.
3. Depending on the value type of the field selected for the Drop Down, different option will be available to use.
Figure 2: The quick options listed for the data values.
4. Select the More formatting options to view additional custom options.
5. In the Formatting window you will be able to choose from one of the default formats or you can create a custom one as you see fit.
Figure 3: The formatting options for the filter.