# Calculation slider or claculation form?

**intensivedriving**I am looking at setting up a calculation on my form to provide me with how much people could save.

Initially they would type in how much they pay for a service each month and then i would need to calculate a 20% saving on this over the course of a year,

If someone could help out on this it would be much appreciated,

Many thanks in advance.

**Shadae**Hi intensivedriving,

This can be accomplished by using our a couple Form Calculation widgets.

You would use one text box field for your user to enter the current amount, then use one field to calculate the 20% and another to calculation the total after the 20% has been removed.

You can view a sample for here: http://form.jotform.co/form/50714482624858

I hope this helps, please inform us if you need further assistance.

**intensivedriving**Hi Many thanks for this much appreciated,

How do i go about doing this in the wizard? not 100% familiar with this widget?

One other thing would be achievable to have the last box labeled saving per year and this simply is 12 x more than the box above?

if you could send me a link to any shortcodes i need or post them on here it would be much appreciated.

- JotForm Support
**Charlie**Hi,

I'm not sure if I understood your requirements.

Are you looking on having multiple text boxes that would represent all 12 months. Then get 20% of each text box and sum them all up in the last text box?

This is what I see in your form:

I'm quite confused with how it should work. If you could give us more details like what are the input fields that will represent a value and what formula you are using, that would help us better.

You may also want to check the guides below:

http://www.jotform.com/help/259-How-to-perform-calculation-in-the-form

http://www.jotform.com/help/57-Smart-Forms-Using-Conditional-Logic

We'll wait for your response.

Thank you.

**intensivedriving**Hi , many thanks on getting back to me,

I am wanting a simple box or slider

1: how much do you pay per month (eg £20)

2: You could save (£48 per year)

This is done by a saving of 20% per month over 12 months so if the input was 10 it would display 24 and so on. I guess what i am needing is what i type in the wizard to get this equation of 1st input divided by 5 x by 12?

I hope this helps.

- JotForm Support
**jonathan**May I suggest we try not to over complicate this. =)

From what I understand so far on the discussion, our colleague

**Shadae**had provided you an initial demo form http://form.jotform.co/form/50714482624858which you had also acknowledged that can work for you, but you just need understanding on how to implement or use it on your end.

You said:

*if you could send me a link to any shortcodes i need or post them on here it would be much appreciated.*There were no

**short code**used... it was all done in the**Form****Builder.**The calculations were done using the

**Form Calculation**widget.From what I see on your form http://www.jotform.com/50712239450954 you seem to understand this already.

*I guess what i am needing is what i type in the wizard to get this equation of 1st input divided by 5 x by 12?*Please tell us if the calculation above which you had use on your form is incorrect.

Perhaps if you can provide us with real calculation example and the expected result, we will be able to understand and give you a better calculation and suggestions.

We will wait for your updated response.

Thanks.