Product Photography Pricing

I've been working on pricing packages on my end. I have them figured out (pretty much) for events and portraits.

On my list was pricing for product photography assignments. Haven't got around to it and now a company reached out just last night and want's to discuss shooting some of their new products.

For those of you who do this, do you charge by the product for something like this? These would be car care products, everything can be easily shipped or transported.

Some input I've received so far is to consider travel time/charges if I need to go somewhere to shoot. Interested in what others are doing as I continue to research this online myself.

Thanks. Joe.

Here's where I'm at so far;

Setup fee $50.00 (They deliver products to me, I unbox & setup at my location).
Per image fees:
1-4 $45 per image
5-9 $40 per image
10+ $35 per image

Turnaround within 7 days (hi-res & web size digital files via dropbox)
If a quicker turnaround is required, $50.00 rush fee.

Does this sound reasonable on products that are small enough to ship in a Priority Mail box?

I'd say price per who you're working for. If they're small and have a budget, be nice, else charge more since they'll be making money from your work constantly whereas you only will one time. Also, allow unlimited use, but keep the copyright so they can't sell the shots themselves.