Help in Report builder report!

Good morning,
I am trying to modify a report that I found in the group files. It is a
"scrap" report. it works perfectly, however, the operations manager wants to
see who made the scrap and how much is the cost of the scrap. Basically, I
need an employee number or name and unit cost times scrap quantity.
If somebody out there has this type of report or knows how to obtain this
information , please let me know!! it will be of great help. (We use Vantage
Estuardo Suarez
Training Department at Ajax Custom Plastics