This field is display only.
This field displays the PO item total.
If the PO item is a lump sum, this field will display the lump sum amount.
If the PO item is units based, it will calculate using the following formula:
(Unit Cost / ECM) =
If you want to change this value, you can pull the PO into a batch using the PO Purchase Order Entry form and then modify the PO item.