How much can you sell photos for?

[dingo]

I've been approached by a local business man who is starting a new exotic-car related company.

He wants to use some of my images for his advertising (website, brochures, magazine ads etc) and wants to know what I charge per photo.

So far I've only sold photos of a photoshoot to a magazine, not individual shots to someone who will use them in advertising.

So does anyone have experience in this situation that can give me a rough idea of what I can charge per photo.

I know a few of you sell photos so your help would be appreciated, feel free to PM me if you don't want it public how much you get for a photo.

I need a response ASAP, no pressure.

Thanks!!!!!!!