Overhead Costs based on Production Costs

At the moment there is no possibility (witout scripting) in beas precalculation to calculate overhead costs (such as sales costs or administratice costs) based on "total labour costs" (= labour single costs + labour overhead costs).

Right now you can only use manufacturing costs as base for the Overhead costs. 

This is a problem for companys, who work on quite different material with a big difference in the material costs. A product (overhead based on manufacuring costs) with expensive material gets much more e.g. sales overhead costs than a product with quite cheap material.

Kind Reagards.