Solidworks Costing

Hi

I am trying to create a costing environmen that would allow me to see, the part cost and the cost of an assembly.

Using the costin  tool i can get this information but not shown the way i want. I need to be able to see part costs, and the total cost of each sub-assembly independently from the total cost of the product.

As in ; want to know how much each area of the product will cost.

Is there a way to do this??