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    How to get % of a total value?

    Asked by ozgurerdogan2 on March 26, 2015 at 12:28 PM

    What must I choose for:


    For example


    I need function for %

    This is a re-post of a comment on Form Calculation - Math Function Reference

  • Profile Image
    JotForm Support

    Answered by Charlie on March 26, 2015 at 01:42 PM


    I'm not sure what you would like to do. Are you looking for the function to get the 90% of a value?

    For the Form Calculation this is what you need to add to get the 90% of the value. 90% because you are deducting 10%, I presume.

    So it should be:

    (FieldA + FieldB) * .90 = result

    1. Here's how I added mine.

    2. In the Form Calculation widget here's my formula.

    You can see a sample form here: http://form.jotformpro.com/form/50845074257963.

    Do let us know if you need more information on this.

    Kind regards.

  • Profile Image

    Answered by ozgurerdogan2 on March 26, 2015 at 03:15 PM

    Thank you. I need to deduct by the value that is chosen by checkbox. I think I can do the rest. Thanks.


  • Profile Image

    Answered by Ben on March 26, 2015 at 05:00 PM

    I presume that you are not sure how to get a value from the checkbox, in which case I would recommend checking this guide: How to Assign Calculation Value

    Do let us know however if that is not what you have meant.