There are two ways, if you need the cost of Inventory Lot Wise.
1st is by going through Item ledger entries and filter the data Lot wise & Date wise and item wise if required. If there is any charge assignment there on purchase or sales, that also reflect there.
And Second is by creating a customize report as per your requirement with discussing with third party service provider. Which helps you calculated value item wise and Lot-wise.
If my answer helped you, maybe it can help others. Please verify it, so other users know it worked or helped you.
Thank you.
