Accumulate a value entered in a loop (begin repeat)

I'm using a begin repeat in my xlsform and each iteration, I ask the user to give a number. Now my question is to know if they have a solution to accumulate all given value in a variable. I need to have the SUM at the end of the loop. Thanks

Welcome to the ODK forum, @Moustapha_Pouye ! We're glad you're here. When you get a chance, please introduce yourself on this forum thread.
The following documentation can help you on your problem:

Thanks @aurdipas , I introduced myself.

Thanks for the documentation that you share with me, it solves my problem :pray: