Rules for Calculating Projected Final Units (HU)
The system calculates HU using the greater of these three formulas:
- The absolute value of RBLU. 
- The absolute value of AU + PU. 
- The absolute value of AU. 
The system calculates HU using the greater of these three formulas:
The absolute value of RBLU.
The absolute value of AU + PU.
The absolute value of AU.