In the Excel-sheet you can find a very clear breakdown of how we come to the final price in both EXW and DDP. Costs per category are clearly marked, like the costs for transport, duties, etcetera.
Some of these categories are fixed, like the import duties. All the other are very stable throughout the year, so the cost structure is a clear view of the total cost per item.
However, we should also take into consideration that the way our price is build up is very complex and depends on many factors.