# How to calculate total based on user selections?

• newmethodanceministries
Asked on October 12, 2015 at 03:17 PM

I have multiple participant fields. Once the customer selects Yes to they would like to a T-shirt and the size (Plus sizes will be more), if each participant and T-shirt selection can be calculated into one total at the end

For Example

If a customer is registering 10 participants and each participant would like a T-shirt, 4 out of the 10 participants are plus size shirts.  (Workshop fee=\$20 T-shirt Fee=\$20/Plus Size \$25.00)

So that would be a total of \$200 registration

T-shirt Total \$220.

\$420 would need to be calculated at the end.

Or for whatever they selected. How can I accomplish this?

• Carina
Answered on October 12, 2015 at 04:54 PM

1. You can add a dropdown field with "How many participants do you want to register?"

2. You can add calculation values to the fields, both the "How many participants" and for each t-shirt size:

3. Now you can add a calculation widget and add all the fields to the calculation:

You can test and clone the demo form:

Let us know if we can assist you further.

• newmethodanceministries
Answered on October 12, 2015 at 05:23 PM

not only that, the previous participant fields need to be calculated as well. Each participant field needs to be calculated

• Mike
Answered on October 12, 2015 at 06:45 PM

This should be possible with custom calculations. I would like to suggest checking the next guides:

Take a look at 'Calculated amount based on user selections and inputs' section of the next article to see it in action.

Mastering Payment Form Integrations with JotForm

Thank you.

• newmethodanceministries
Answered on October 15, 2015 at 01:17 PM

I appreciate all of your help. I went through all of the tutorials. I am still having issues with the calculations. I have tried EVERYTHING lol.

When they choose a class and or if they choose a t-shirt size, it should be calculated. the calculations do not add up correctly. What am I doing wrong?

https://form.jotform.com/50818701594964

• Mike
Answered on October 15, 2015 at 02:59 PM

Your calculations look good in general, but it seems that there are missing plus symbols between tshirtSize and participantClass fields. Please add them and re-check the form.

Thank you.

• newmethodanceministries
Answered on October 15, 2015 at 05:02 PM

Ok I added the plus signs, but now it's not giving a total at all.

• Mike
Answered on October 15, 2015 at 06:22 PM

I have removed the last plus sign, and calculations seems to be fine now.