Creating a report for stock, purchasing and sales information

SUGGESTED

Hi all,

I have been asked by my boss if I can create a report that shows the following information:

Stock Item Description On shelf quantity On purchase orders qty On sales orders qty Allocated

Basically he want me to create a "simple" supply and demand report, but I am really not sure how to link the Stock, POP and SOP tables together.

I don't know if it can be done in a simple report of if i just need to create 3 different ones and squish them together manually. 

Not sure if this is possible using SQL, he will just need it all exported to a spreadsheet, so a Sage report doesn't need to look pretty. 

Help?