Prices will be based on
supply and demand
Quality especially when it comes to some animals listed
Current market prices, it's YOUR job to research the prices of the morph you are currently producing by checking various breeder's site, and classifieds site, no one will do it for you, when people are already gauging their own animal,
Reputation, people might be wary about dropping any kind of cash with someone popping out of nowhere.
Marketing skills
As far as turning a profit only YOU can tell, obviously I don't have YOUR numbers, and profit does not mean whatever your animals sell for is profit,
So you need to do some research and understand the market that's part of becoming a breeder and having business skills.