Currently the sales reporting provides a calculated sum of how many of that item came into AND out of stock. So, sometimes the item sales report reflects negative numbers, even though we may actually sold several in that time frame. It reflects a negative because we had folks exchange/trade in said item for new products, and when we created a credit note for said item it "added" it to our inventory - whether the item was in resellable condition or not.

It would be nice to see 2 data points for the sales on each item:
- incoming inventory (returns / exchanges / etc...)
- outgoing inventory (true sales)

It would help identify trends, and more accurately track what is desired / not desired by customers.

It could be set as an option, as some folks do not care to see the difference between in and out.

Currently, the only way to track in / out bound is to have multiple "items" in the system, for the same product.