Designing simple sales report

Question

I am trying to create a Sales report from two tables: PRODUCT table and ORDER DETAILS table.
The Order Details table has the following fields: Order ID, Product ID, Unit Price and Quantity. The Order ID field is a primary key in another table called ORDERS.
The columns I want in my report are: Product code, Unit Price, Quantity Shipped and Sales. Product code and Unit Price are fields in the Product table and I can show them easily in my report. The problem I am having is displaying the Quantity Shipped and Sales columns. I have created two formulas to calculate this information.
Quantity Shipped formula:      Sum ({Orders_Detail.Quantity},{Product.Product ID} )
Sales formula:     {Product.Price (SRP)} * (Sum ({Orders_Detail.Quantity},{Product.Product ID} ))
These formulas seem to work well. The problem is that when I place them in my report, I get three rows for every product id. So I end up with three rows of the same information for every product in my report.
I am practicing with the xtreme.mdb that I downloaded from this website. Any help that you can provide would be much appreciated.

Answer 1

HI,
Thanks for the info.
Placing the information in the group header solved the problem of having rows appear multiple times. Now each product item appears only once.
HOwever, I am still unable to figure out how to show the quantity shipped for each item. I guess I will have to use the Quantity field in the Order_Details table. Doing a running total on this field in the group header just does a running total on the quantity field without being tied to specific product.
Your help is much appreciated.