I want to add 10% to my shipping costs that come over from UPS. There are a lot of extensions but I don't really want to add and extension for something so small. Is there another way?
I believe that you can handle that surcharge with Magento out-of-the-box.
I've made some shipping modules and that kind of behavior was a custom option for those modules.
The best way to change the default result is to override the code with a module.
In shipping methods there is a handling fee. I added it in there and it just adds it on to the price which is exactly what I was looking for.
You're right (my bad). I didn't check the options of the native UPS integration.
Here's the section where we can set the handling fee for the UPS integration:
Thank you for share how you've solved this and correct me.