Extra Cost Accounting

Hello,

Can anyone help me to understand how one can achieve below requirement.

Costing Method is 02 (Weighted Average)

Client requirement is to have Manufacturing Accounting calculation as:-

IM- Raw Material Cost

IH- Labor+Machine+Outside Operation Cost

Now client wants to add 9.5% as a Operation Cost on (IM+IH).

So IC Should be IM+IH+(9.5% of IM+IH)

Can we achieve this by adding Extra Component X1? Or any other way Or workaround?

Thanks,