HOw to pass a dataset column as a parameter to Crystal?

[o9z1]

I am using vb.net 2005 and crystal reports and I am wanting to pass a calculation I have in my select statement to crystal as a parameter.

My select is like this

Select (ks.TotWeight / 100) * price.mkprice)) As TotalPrice, ks.Pay, ......

my select contains alot of other fields + a join on the price table.