How inventory valuation report display the valuation of Lot costed items?

In R12 OPM, we have lot cost method in fiscal policy and the alternate cost method is PMAC. When we are running the inventory valuation report, the item costs are appearing in the report but unable to drill down how it takes the item cost.

Suppose we have 2 lots (lot A & Lot for the same item and on hand for this lot is say Lot A - 20, Lot B- 30 . Cost of lot A = 10, cost of lot B= 20.

So when run the report at the period end, then what would be the item cost & value of the item. Inventory valuation report is displaying only item and cost and not the lots.