Inventory - zero quantity and negative value.. how to fix

SUGGESTED

Client issue:  Current inventory item has zero quantity and negative value.  Need to end up with positive quantity and positive value.  Also have items with quantity but negative value.  I have tried inventory adjustments - but getting wonky numbers.  Been a long time since I have encountered these issues, and the common sense way to fix isn't working (my opinion only). Their year end was Sept 30th so trying to do adjustment the year end inventory figures.  Any assistance would be most appreciated.