PDF dropdown menu percentage calculation

[vitaly_6807]

Hi, I am trying to create a PDF invoice form, with fields that calculate 9% tax and 21%tax.

If I have both fields in the form then the "total" field adds both values. So I thought to would create a dropdown field that would specify if the btw in the invoice is 9% or 21% and then only the required amount will be displayed in the "Tax" field.

I cannot find the JavaScript that would allow me to do that. 

Could anyone help me, please?

Thank you.

[Nesa Nurani]

If you just want to show the value of dropdown in tax field, use this as 'Validate' script of dropdown field:

this.getField("Tax").value = event.value;

If you need to actually calculate tax, let us know.

[vitaly_6807]

Hi Nesa,

Thank you for a quick reply.

Ideally, if I select 9% in the drop menu, it would calculate 9% from the "subtotal" field and show the result in the "Tax" field. (same if I select 21%).

[Nesa Nurani]

What is the name of the dropdown field, and what are exact values in dropdown "9%" or "9" and do you have set export value?

[vitaly_6807]

Hi, thank you, for some reason, I still could not make it work.

The Dropbox field is called "Tax%". The field that should show the calculated amount it "Tax".

If I choose 9% in the dropdown it should calculate 9% of the sum in the field "Subtotal".

If I choose 21% in the dropdown it should calculate 21% of the sum in the field "Subtotal"

Then the "Total" field can add "Subtotal" and the "tax".

Thank you.

[Nesa Nurani]

You can follow @PDF Automation Station solution, just change field names in the script "TaxDropdown" to "Subtotal" and "Tax" to "Tax%" and place the script in "Tax" field under 'Calculate' tab as custom calculation script.

Or you can also try to use simplified field notation in "Tax" field by entering this: Subtotal*Tax\% (after you set export values).

[vitaly_6807]

I have finally made it work. Thank you very much!

[PDF Automation Station]

In the options tab of the dropdown add enter 9% as an item and .09 as it export value, then 21% as an item and .21 as its export value.  In the tax field enter the following custom calculation script:

event.value=this.getField("TaxDropdown").value * this.getField("Tax").value;

[vitaly_6807]

Thank you!