always negotiate and know your worth
My job coach preaches that the first one to talk money "loses". I always answer the question of salary with, "market rate" or "I am sure you pay a competitive rate", etc.
Since you've already stated 35K I would use the cost of living. If offered the 35K you could state "I've been doing research on the cost of living here compared to my current place of residence and I believe I will need 45K to maintain the same standard of living."
Be prepared for them to say they can't give you that or for them to rescind their offer. Don't kick yourself if you "price yourself out of the job". Decide what you want to live comfortably and continue to look for work.
Next time don't give a price, always say something like "I'm sure your wage is competitive" or "I'm sure you will offer what the position is worth to you", etc.
