I have an opportunity to sell an animated short to a technology company. The problem is I have no idea what to ask for it. It's taken me weeks to get it together (still in work actually). I'd like to be able to give some cash to my voice actor for his time and trouble in addition for being compensated for my time.

So is there any guidance on charging a client? If you are approached to do a 30 second spot for TV using all 3D actors and sets and it takes you 2 weeks full time to get it done, what's a reasonable price?

How about if you are adding VFX to a live action video you shot for a local restaurant or other buisness? Is the pricing different than if it was for a regional chain company?

Ultimately I'd like to make a living doing this, so I don't want to give things away, but I don't want to ask for outrageous amounts of money (in the client's eyes).

I'm looking for opinions here, especially from professional artists. TIA!