Here an exemple for a delivery from US to Belgium
Buying = 100€ Sending is 30€
OK now VAT (Belgium) 21% on price + sending ( 130E ) is 27,30€ ( 21%)
then custom costs : 15€
so you pay 42,30€ more
Thus for a buying value of 100€, you pay 72,30€ global cost = 172,30€
This is why I never buy outside EU community, buying in the community :
1) again 100€ if this price is vat included, only sending costs circa 15€ total 115€
if no included the seller will add the local sup (100 + suplier VAT +/- 20% total will be 135€
2) if buying via e-bay in the community, the price announced is VA included
3) the price indicated on a product from a supplier is with/without VAT ? This is rarely clear
Let me cry with you