Calculation field with dropdown or checkboxes

I read the instructions about the calculation field:

http://www.jotform.com/help/259-How-to-perform-calculation-in-the-form

However, there are 2 variables (dropdown menu or checkboxes) that influence the output. I didn't find how to include those into the calculation. I checked the 'Wait for input before including the field in calculation' but what to do from there? How to instruct the calculation field to have those choices effec the outcome?

Thanks,

Jack

Hello Jack

If I understood you right  you wish to add to your calculation field the values from checkboxes and dropdown fields. If you wish to add them only after the user select them please go to the select option and deselect the default option:

To add these fields to your calculation field, please select the calculation wizard (1) and add a field (2) select the mathematical operation (3):

Repeat the process for as many fields as you wish.

You can check the test form and clone it if you wish:

http://form.jotformpro.com/form/41384913190959?

Let us know if further support is needed.