Example:

Suppose I have 2 categories and 2 productos on each category

Category 1 called "FOODS" contains the products "Dog Foods" and "Cat Foods"

Category 2 called "HAIRDRESSING" contains the products "Bath" and "Hair Cut"

The product costs are:

"Dog Foods": $100

"Cat Foods": $50

"Bath": $30

"Hair cut": $40.

Suppose this month my company sold 3 dog foods, 2 cat foods, 5 baths and 5 haircut

So, the sales costs gruped by categoy should be:

"FOODS": $400

"HAIRDRESSING": $350

Where can I get that information from in Odoo??