Hi there,
if you want to display a value as it is displayed from another field, it's simple as you should use the formattedValue instead of the rawValue.
You can also specify a display pattern for the floating field according to the data entered within. When the floating field is selected, just go in the Field tab under Object Palette, click on the "drop down" Patterns and choose the "Display" tab. Then insert the display data you want to display, you can always use display patterns from other fields than a text field if needed.

I hope this will help.