Cost, nventory and Sales Gross Margin

Hi Groups,

Can some one please give me some feed back regarding of the Cost,
Inventory and Sale Gross Margin?

We do Cost Set Entry Roll Up every two weeks to populate the cost. But
we do not have the Subcontract cost in the BOM so it is zero out when
BOM cost roll up. So it effects our invetory value.

The Sales Gross Margin cost has Job Cost and BOM cost.

Any suggestion how to handle the cost and what we should do?

We setup standard cost but our Controller wants to have the last cost?