How much is the furniture photography?

This belongs to commercial advertising photography. It seems that you are not engaged in advertising photography.

What he wants is a large quantity, not a complete set of sheets of paper as in the past outdoor advertisements, but all of them, so he wants to charge in a unified way, not by sheets.

Look at what he is doing. He wants to negotiate, just for the decoration of his factory, which is cheaper.

If used as an advertisement, it is higher. There are also property rights fees.

So, you can budget yourself and make a list, which will be more professional.

For example:

Backstage layout: 500 yuan (labor cost, equipment cost)

Photographer's appearance fee: 600 (unknown)

Photographic equipment: 200

Film production fee: 500 (post-processing, or different sizes)