[ic] adding a per SKU charge [still in need of help]

[interchange-users@icdevgroup.org (Dave Turk)]

----- Original Message -----
From: "Admin" <admin@mediaservices.net>
> Check out the help/archives for "handling"...
>
> Works quite nicley for this, we use it for the same scenerio with
> international orders...
>
> Russ Smith
> Mediaservices Network
> ----------------------------------------------
>
> -----Original Message-----
> From: interchange-users-admin@icdevgroup.org
> I have a customer that sells mugs, shirts and hats and some of the items
> have a screen charge of $45 regardless of how many they order of the
> same SKU #. How can I add this to the options table so that it will
> add $45 to the total after the quantity has been multiplied by the base
price
> plus options. Any hints would be great, even just a starting point.
> Thanks for all the help everyone has already given me.
> Dave Turk

Where can I access the code that calculates the total cost of an item with
the selected quantity and options.
I just don't understand how/where interchange is calculating  this.
We need to include a $45.00 screen charge in the extension price as shown
below.

      Action   SKU     Description
Quantity        Price          Extension
      edit       SA5      STAINLESS STEEL MUG
      ----MINIMUM ORDER QUANTITY 36----                  36
$10.99         $395.64(needs to be $440.64)

Can someone tell me briefly how and where this is calculated so I can modify
it to
include a if statement that will add these charges if applicable. What would
be nice
is if I could add a CommonAdjust field that would add this to the extension
price.
I am currently stumped and need a couple more ideas.
Thanks very much
Dave Turk