Hi Mary, 

Ok, I understand that. Do you know how that amount is calculated? See below screenshot. I understand the typical "average cost", but my question is are both Inventory and Non-Inventory prices included in calculating an Assembly Build's average cost? In this screenshot, on the right is a Build transaction and on the left is the Item Listing for one of the Non-Inventory items included in the BOM. But my question is, in the right panel, how is the $4.56 determined to be credited from COGS? Where is QB getting this number from? You can see that the total of the 2 non-inventory parts is just 20 cents for this build transaction. Thank you for helping!!