The duty on the items in the container vary considerably. My broker helped me assign value to the huge list of minuscule to large items, based on yard sale estimates. New items have to be claimed as new so try not to have many of these. And one kicker, I forgot until I brought my pets back from the US the other day, they also charge duty on the cost of shipping from the Port of Debarkation, a percentage but it can be hefty. Sorry, I didn't give you any figures, but it really varies. So make sure you have an inventory of each item with a number assigned, because the number will be checked against the number on the item, then have a value, line by line.