That's awfully vague. You should really offer a price you're willing to pay for the service, that way, the producer has a sense of certainty before taking on a job.
Or at least in my opinion.
But to each their own.
Awfully vague on your behalf too. Why would I offer a price when I'm not sure of the prices... I may get offered a price which is lower than I'd expect to pay. How much are you looking for?