Calculation Script

How do I write a calc script that will take "Total SGA", a parent account, and allocate it by a percent to another level 0 account, by department, entity, month, etc...   What this is doing is populating as a % different from the % in ALLOCATION_PCT.

FIX("Jan":"Dec",&BudYr,"System","Dollars","Input","79400", "100","6100","Budget")

      UHC = ("Tot_SGA_Exp_Less_Const_&_Dontn" -> "AMC" -> "000") * 

                 ("ALLOCATION_PCT" -> "100" -> "BegBalance");

ENDFIX

79400 is the level 0 account.

100 is the level 0 line of biz.

000 is the level 0 line of biz.

2150 is the level 0 department

AMC is the level 0 entity