is $200 too much for puppies?

is 200 too much for mixed breed? they not fixed, no tests, she going to give their vaccinations herself.  

Since they started these 'designer' dogs, EVERYONE is getting a lot of money for mixed breeds. I myself would never pay that much for a mixed breed, especially with no vet visits and no knowledge of history? I guess it's up to you to decide if it is too much, you can always offer less! All the luck!

they my sister puppies that how much she wants, i think it too much esp because they haven't have any vet visits and still intact 

At least you know your sister! Being a sister shouldn't she give you a discount?

I don't want one, I just find it too much

Yeah, she probably won't sell any unless they're a highly desirable mix (anything with Poodle, small fluffy things, etc.). If they're a large breed mix she'll be lucky to give them away :/.

I think it's reasonable to charge actual expenses for an accidental litter---usually somewhere between $50-$100 depending on what kind of vet care they've gotten. This also weeds out some of the riff-raff (but not all; screening is still important). But more than that isn't reasonable. But that's the free market---if your prices are unreasonable, people won't pay them.

I do hope she plans to spay the mother after this,

the parents are chihuahua and pomeranian mix 

Ah, well, she probably will get that price then :/. I don't necessarily think that's a good thing but hopefully they'll all go to good homes. That's the most important.

Try to convince her to keep the puppies until they're 10-12 weeks old. Small breeds benefit from staying with their mother longer, like kittens. 8 weeks is the very minimum, it's even illegal in some places to remove pups from their mother before 8 weeks.

she will post it on facebook and she will check the new owners out on facebook, she wants them to go to a good home