I have three questions about BOM pricing.

With a "normal" part there is a button to compute the COG (price) from the BOM.
However when there is a part that has a variant in BOM there is no button to get this costing. How do I get it?

Furthermore, when I look at the costed BOM for these items the BOM cost and the Product cost are not the same dollar amount total. When I look at the numbers below these headers to generate the total they are the same and add up to the BOM cost number not the Product cost number.

What is the difference between these two and why are they not the same?

Lastly is there a way for the BOM to show individual and total item cost? IE if one line of the bom is $0.50 each but the BOM calls for 4 how can I get the BOM to show 4 @ $0.50 = $2.00 for the line? I would think that would be the BOM cost vs Product cost but they both show the total only.

thanx