A field needing multiple calculations.

Attached is an example report that was not created by Crystal Reports.  I am working on re-creating it in Crystal Reports.

I am using Crystal Reports 2011.

In the total line, there is a field called Coil Balance.  Here is how the Coil Balance needs to be calculated:

- Add up the weight values whose Serial No does not start with B.

- Add up the Total Scrap values whose Serial No does not start with B.

- Add the results of that together and subtract from Master Coil Weight.

What is the best way to do that?

Sincerely,

Keith Jackson