@hadish I think I finally figured what you mean. Please take a look at the attached XLSForm Is this what you meant?
Repeat Group.xlsx (10.7 KB)
Some notes on what I did:
- created a new
calculatequestion that uses theposition(..)function to get the index of the iteration in the repeat-group in this case - references that calculate field in the 3 questions that you require.
Here is a snapshot of the changes highlighted
Hope this is it.

