My purebred chocolate lab got out & has 11 pups. How much do i ask for?

My Chocolate lab is pure bread but she ran off and got pregnant, now she has 11 thriving puppies. We want to sell them when the time comes but we don't know what the father is and we know its not lab. Some pups are all chocolate, some are black with a little white or brown with a little white. We're thinking about 50 bucks but we're not sure. Can you help?