 rbmansAsked on November 20, 2017 at 05:00 AM
I have a product where one cost is based on a specific value stated by customer. I therefore wonder, would it be possible to have customer type a value, and have the form automatically calculate the cost based on a fixed value in percentage? I'll give you some examples.
Let's say that customer type 100 then I want the result/ cost to be calculated on 100 x 1.1% = 1.1. If customer types 2500, calculation should be 2500 x 1.1% = 27.5.If this is possible, I will replace the item "cost/ bonus".
 JotForm SupportRichie_PAnswered on November 20, 2017 at 09:53 AM
Hello rbmans,
Yes you can calculate fields and set the value using conditional logic.
Here is a screen shot.
To achieve this, in your build view go to settings then conditions
Click the + add sign and choose UPDATE/CALCULATED FIELD
In your IF "select the field where your customer inputs his value" in my case its Value then STATE to Is Filled.
Do: Calculate a field's value then ADD FIELD, select the field in your IF then add your calculations. In you summery is where you want to put the output of your calculation.
.
Here is the link to my form, feel free to clone it : https://form.jotform.com/73233569416965
Please let us know if we can be of further assistance.
Best Regards.  rbmansAnswered on November 20, 2017 at 12:00 PM
Thanks!
Took some time to realise that I can't use normal math and %. But using your formula it works.A bit curious of why it doesn't work though...
cheers
 JotForm SupportKiranAnswered on November 20, 2017 at 01:26 PM
You may also use a form calculation widget to perform calculations on the form without using any conditions. For the provided example, you may set up the formula as shown in the screenshot below:
Please refer to the guide below that can help you with using the form calculation widget.
https://www.jotform.com/help/259HowtoPerformFormCalculationUsingaWidget
Please get back to us if you need any further assistance. We will be happy to help.
 rbmansAnswered on November 20, 2017 at 01:32 PM
Thanks, it does work with conditions as well. But only when using formula from above.
Therefore I am A bit curious of why it doesn't work utilizing normal math or % though...  JotForm SupportJim_RAnswered on November 20, 2017 at 02:45 PM
I think what you're referring to is the normal percentage calculation.
e.g.
25% of 3000 = 750
10% of 18 = 1.8
I don't think there's a way to calculate the percentage mathematically without converting it to fraction or decimal first. When solving for percentage, 1.1% of X equates to X * 0.011. So you need to either use fractions as demonstrated on the examples given by my colleagues or go straight to using decimal by dividing the percent% value by 100.
e.g.
Use X * 0.011 instead of X * (1.1 / 100)
 rbmansAnswered on November 20, 2017 at 03:06 PM
Thanks for response but I was probably not clear enough. What I meant was that it is not possible to Use X * 0.011
 JotForm SupportjonathanAnswered on November 20, 2017 at 04:31 PM
I am not sure how you meant it was not possible... because using the Form Calculation widget as mentioned already should work for calculation like X * 0.011
Example: https://form.jotform.com/73236666263966
I hope this help. Let us know if you need further assistance.
 rbmansAnswered on November 20, 2017 at 05:03 PM
ok, actually it does not matter since it works with the formula sen before. Maybe I have to use the widget. I don't do that,. Only the condition settings.
Any way thanks.
 JotForm SupportKevin_GAnswered on November 20, 2017 at 07:46 PM
Please note that the conditions wizard for calculations is similar to the calculation widget wizard so you can do the same too.
Here is a guide about it: https://www.jotform.com/help/268HowtoInsertTextorCalculationintoaFieldUsingConditionalLogic
I hope this helps.
