How can I make a report that tells me how many of each individual product (weighted by % deal/stage probability) we are likely to sell in a certain period?

I am not interested in a "November: amount money forecast" but rather I need a "November: amount of individual product" forecast. 

Our company manufactures about 8 different products. With such report I will be able to advise our production team on how many of each unit to build. 

Is this possible, and how?

Thank you!