Yes, sales qtantities are stored in the Inventory master. Steve's other observation is more important - when are you running your period ends in Inventory?

If the period ends aren't what you need then you may need to add up some of the sales buckets in he Inventory file. If this isn't good enough for your purposes, then you'll want to generate the sales figures from SalesAnalysis using GridView and then use the GETLINKEDVALUE() function to pick up the other Qty fields from another view looking just at Inventory. This is a little more complicated and you may need some assistance to structure that workspace.