How to do calculation in my form?

how to do that calculation? I tried many times but it didnt work.

For example I have a field of DURATION (drop-down)with 3 options: "1 month", "2 months","3 months".

I have the 2nd field which is FEE.

I want when I pick "1 month" in DURATION then a value of "200$" will appear in the field of FEE.

What should I do?

Thanks!!!

Hello,

I have understood your issue and I have created an example form for you. Please check the following example form link: https://form.jotform.com/63403407296960

Please check the following steps below after creating a drop down list and a text box:

1. First of all, open the configurations of the drop down list and click the Surveying tab. You need to enter the calculation values. You should separate each value with a new line as you can see the following screenshot:

After saving the changes, each drop down list item will have the following calculation values:

empty -> 0

month 1 -> 100$

month 2 -> 200$ 

month 3 -> 300$

2. You need to set Conditions to copy the value of drop down list and make it appear in the text box field as you can the following screenshot:

3. Set the conditions as you can see the screenshot below:

Save your conditions and your form.

Please try this. If you need further assistance, let us know.

Thanks.