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    Can I use the calculation widget for totaling balance amount?

    Asked by jennymccann on March 31, 2014 at 10:10 AM


    I am attempting to create a contract for my wedding photography business. I have 3 packages clients can choose from and I currently have those set up with radio buttons. My question is, since I also require a down payment to secure a date can I use the calculation tool to subtract that $ amt from the final payment. - Depending on which radio button they chose, the final payment would change. Can I do that?

    Thanks for your help.

    Jenny McCann

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    JotForm Support

    Answered by Welvin on March 31, 2014 at 11:21 AM

    Hi Jenny,

    You should be able to do that in our calculation widget. The formula should be:

    Total - Downpayment then the result is the Balance.


    But for this to work, I would advise using the Textbox field for the Downpayment field so you can input values. Calculation widget is read-only.

    Here's an example form: http://www.jotformpro.com/form/40894331220952

    Sounds good? Let us know if you have any further questions.


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    JotForm Support

    Answered by Welvin on March 31, 2014 at 11:24 AM

    By the way, here's the calculation guide: How to perform calculation in the form?


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    Answered by jennymccann on March 31, 2014 at 11:39 AM

    Awesome!!! Thank you so much for your help. I really really appreciate it.

    Is there also a way for the date tool to subtract 30 days? I will have clients enter their wedding date and I require full payment 30 days BEFORE the wedding date. So I was wondering if there was a way to have it automatically populate that date.

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    JotForm Support

    Answered by EltonCris on March 31, 2014 at 12:24 PM


    That's possible with datestring math function.


    Demo: http://form.jotformpro.com/form/40881718184966?

    If this isn't what you mean, let us know here.


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    Answered by jennymccann on March 31, 2014 at 02:21 PM

    Thank you again for your fast responses!!