Stop Column from Rounding (asterisk)

In JobEntry, we have the QtyPer column (JobMtl.QtyPer). We need to display the entire number (all the way out to 8 decimal places, just as JobMtl.QtyPer was designed to do…). Epicor however, automatically rounds this up:
I have tried setting the extended properties in the script, in the properties themselves, and even in the extended properties screen… nothing has worked. Making this even stranger, when I open it up in developer mode, the full number displays… How do I force this column to stop rounding? I hope someone has hit something similar and could provide some input.

All the best!