How to automatically add multiple shipping charges?

I am using ZenCart for a delivery service which has a flat delivery fee for one restaurant but an additional charge for each additional restaurant that food is ordered from. Is there an easy way to accomplish this?

Also, is there a way to set up two templates running off one database? I want to do a pc and a mobile version of the site.

THANKS!

Are you using the manufacturers_id in the products table for identifying each restaurant? :unsure:

Ajeh:

Are you using the manufacturers_id in the products table for identifying each restaurant? :unsure:

I am listing each restaurant as the manufacturer of the food item. I figured that would be the best way to accomplish what I am trying to do, just haven't come across what I thought was the option to do what I am trying to do.

If I order 1 thing from 3 restaurants ... is this:

1 Flat Rate plus 2 * extra charge?

If I order 1 thing from 2 restaurants ... and 4 things from 3 restaurants is this:

1 Flat Rate plus 1 * extra charge plus 4 * extra charge plus 4 * extra charge plus 4 * extra charge?

Or is this 1 Flat Rate plus 3 * extra charge?

It's a flat shipping rate for each restaurant (shipping rate * number of restaurants).

I also need one "restaurant" to be free shipping as the website itself offers beverages and those are included in the original shipping cost.