I am new to DBA, but have 35 years in the industry and really detail oriented.  The problem that I have is in the INVTXN files.  Basically, I see issues transactions that are storing an extended amount when there are more that one issue to a work order.  
 
The first issue record has a quantity of 50 and a stdcost of .1800  
 
The second issue  record was also for 50, but it shows 9.00 in the stdcost field (50 @ .18 = 9.00)
 
It seems to way overstate the BKAR_INVL_PCOG.