**events296**I have tried to output the sum of a matrix's fields multiple times. Every time I save the logic the fields are removed and all I am left with in my equations is the addition signs.

*This is a re-post of a comment on How to Perform Form Calculation in the Matrix Field?*- JotForm Support
**Mike_G**I understand that you are already aware of this guide: How-to-perform-form-calculation-using-the-Matrix-Field-

And to my understanding, you are referring to this:

It is working properly on my end:

Can you, please, provide us the form URL of the form where you're experiencing this issue, so we may check?

Also, as an alternative, you can use an ordinary text box field for the Calculation.

You can use the "Update a form field value" option from the Condition Wizard:

I hope this helps. Let us know if you need any further assistance. Thank you.