Depends on if your going to adopt one from the animal shelter or buy a pure bred with all it's records. It could go from as little as paying for the shots to as high as 500 dollars for a registered dog. No dog will be free because you have the upkeep of the animal food,vet bills,care products.
We got are wiener dog from a breeder and it was about $550. Though there are many places you can go for cheaper!
I think your looking at 450 plus but with that you should have legal pedigree papers to show the true breed plus history of the parents
Some places will cost around 4-5 hundred dollars. Try calling your local vets and see if anyone is selling them.
Dacushunds can vary in price depending on who your purchase the puppy from. You can rescue one from the shelter with relatively little expense or you buy one from a reputable breeder. Depending on the quality of the litter price can vary from $300 to upwards of a thousand.