percentage (%) based handling charge

I have searched through the eStart book, this forum, and Google and still can't find the answer.

What I am trying to do is set the handling fee as a percentage.

I imagine if I can find the code that does the math: shipping + handling = S&H total and change it to shipping * handling = S&H total it would allow me to input 0.40 and that would give me a percentage based handling price.

Of course this is only theory. Am I on the right track? If so, where in the files might I be able to find where the calculation is being made?

I am trying to wind up this project this weekend so any help you can offer within the next couple of days would be greatly appreciated.

thank you!

It looks like you'd have to make changes in each shipping module.

If you use the Developers Tool Kit and search for 'handling' you'll see a pretty small list of files where that stuff is done.

Ok, thanks for that tip.

But if my client is ONLY offering UPS, does that still mean I have to make those changes in all the files?

I will start to look into it and let you know what I find. Thanks.

Thanks Stevesh!

I found this line:

'cost' => ($cost + MODULE_SHIPPING_UPS_HANDLING) * $shipping_num_boxes);
``` in my UPS module on line 181

and changed it to:

'cost' => ($cost + ($cost * MODULE_SHIPPING_UPS_HANDLING)) * $shipping_num_boxes);

And that seems to do the trick... at least if what I remember from math class is right =P