US order tariff prepayment

This ‘product’ will prepay the new tariffs imposed by the US government for non US parcels. 
The amount is specifically calculated for a set of taupe Donkey Ears + Tail.
The amount will pay for the tariffs and handler fees, but not possible customs or shipping
The product is non refundable since it’s part of the shipping process. 
Faux furproducts will be send as HTS code 6001.10.20.00 for Pile fabrics with Manmade Fibers giving it a 17.21% tariff
The calculation is 17.21% of product costs for tariffs + 2% of the tariff costs + €0.45. Making it a total of:
17.21%  of €115= €???
2% of €???? =€0.35. 
€???+€???+€0.45=€18.05
The shipping+tariff costs are in no circumstance refundable and no changes can be made once the parcel is shipped nor do we have influence on when the parcel will arrive nor any policy changes incurring added costs at the door. Placing the order will infer you have understood this and agree.