How is the quantity remaining computed for each receipt layer?

The receipt layer quantity is calculated on a FIFO basis and all issue transaction quantities deplete the receipt layer quantity in this order within the context of a valuation unit.

The quantity in the Period Layer Inventory Valuation report at the inventory organization level cannot be compared with the Period Inventory Valuation report because it reflects the quantity based on how the quantity is depleted in Inventory, which can be different if the valuation unit is at a level different than inventory organization.