JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
I can see that you have opened more than one thread regarding this situation:
We kindly ask you to open only one thread per question as this helps us to be more efficient in our approach.
Regarding your question, I inspected your form 52844577356164 and there was a problem with the calculation field. I've cloned and recreated the calculation.
You can test and clone the demo form:
Let us know if we can assist you further.