Do you know, that supplement SOLIDWORKS Costing It also allows you to define a template for folding and multi -work parts?
The general principle consists of using within the templates of the workpiece and sheet sheets within the templates. But in addition, you can define the costs of the operation from the assembly and the costs of purchasing parts.
During the calculation itself, you can choose objects/parts for calculations and, as in other calculations, Finally, make a report.
Calculation in folding requires a SolidWorks Premium or Ultimate license.