Create new report

Hi everybody, I need to create a new report with a format very similar to "Inventory(Stock) in Warehouse Report".

I created a query in Query Generator that recovers the data that I need.

However, I need for the report to insert a title with the name of each warehouse ( just like the one in Inventory(Stock) in Warehouse Report) and include the totals for each warehouse and the Grand total ( also like Inventory(Stock) in Warehouse Report).

Any ideas in how can I achieve this?

Thanks