Field Group repeater calculation help

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Hi, I’m trying to understand the way calculations work in the field group repeater feature.
I only seem to be able to get the one calculation amount.
So if group 1 is $5 and group 2 is $15, I only get $5 coming through.
I’m not able to see the “-*” field to add to the calculation and not able to see or the ALL option outside of the group.
I have tried to use the logic in the Field Group tutorial on your website.
Any guidance on what I am doing wrong would be greatly appreciated.
My form is here.
https://drive.google.com/file/d/1WyNwJFxKzrHnwf8QPUk71oCKhqWhEXqI/view?usp=sharing

The page I need help with: [log in to see the link]

 

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