Hi Michael,
Here's what you need to do:
1) Insert a Group on the 'Product' field.
2) Go to Insert Summary > Choose 'Qty' as the Field to Summarize > Choose 'Sum' as the summary function > Under 'Summary location' choose 'Group #1'
3) Suppress the details section and move the Qty summary from the Group Footer to the Group Header.
-Abhilash