How to set the negative cost amount to 0 ?

Hi All,

    I have an Item with  no available quantity , yet has a physical and negative cost. as per below

   Physical cost amount     = -0.20
   Financial cost amount    = -0.07

   Total available        = 0

  I want to set the Physical and Financial cost to 0.  I notice that in transactions , there are options to adjust the 'Amount'  and 'Value'.  Please advice which option I should use in this case.

I did run the Inventory Recalcualtion. There was a settlement for the  said Item but  the above costs was not changed.

Is a better way of  adjusting the costs to 0 ? let me know . Much appreciated!

Regards,

Adrian.V