How can I use conditions in a form?

I'm a home inspector, and I'm try to make a form customer can fill out.

I'm trying to use different fields where a customer can enter information and I can give them a cost output.

First field would be where customers enter square footage.  Second field would be the year a building was built.  Third field, location.  Fourth field, sheds or hot tubs.  

I want to calculate an output based upon the input of these filed.

Example: House is 1550 sqft with a shed located 20 miles away.  Cost would be $350

$300 ---- 1501 to 2000 square feet

$325 ---- 2001 to 2500 square feet

$350 ---- 2501 to 3000 square feet

$400 ---- 3001 to 3500 square feet

$450 ---- over 3500 square feet

$25 ----- Shed

$25 ---- Hot tub

$25 ----- Location: Pine (about 20 miles away)

I suggest you to check the following guide: https://www.jotform.com/help/259-How-to-Perform-Calculation-in-the-Form which you can learn how to perform calculations in your form.

Also, you can check this guide: https://www.jotform.com/help/57-Smart-Forms-Using-Conditional-Logic to learn how to create conditions in a form. So for the example you provided you can create the if condition like this:

Please let us know if you need further assistance.

Excellent.  Your example helped me big time.  How do I enter the syntax for multiple conditions.  So I would want the output to be $325 if the number entered was between 1501 and 2000.  In addition $350 if the the number entered was between 2001 and 2500.

So I would want the output to be $325 if the number entered was between 1501 and 2000.

The condition would be the following:

In addition $350 if the the number entered was between 2001 and 2500.

This would be the condition:

If you need further assistance, please let us know.

Sorry, I don't get it.  Your second example doesn't show the original $325.  I'm trying for different outputs.

$300 ---- 1501 to 2000 square feet

$325 ---- 2001 to 2500 square feet

$350 ---- 2501 to 3000 square feet

$400 ---- 3001 to 3500 square feet

Oh, think I've got to start with a new Condition every time right.  So I give the first condition, then I  select the second conditions button (green cross arrows) and put in the second condition.  

When I enter the 3rd condition, it doesn't work.  Anything over 2000 will give me 325. 

The rules in the condition should be having All instead of Any.

The condition is displayed as below :

Please try changing the Rule to All and it should work. Please let us know if you need any further assistance. We will be happy to help.

Thanks!

Thanks for your patience.  I'm new to this but I'm getting it.  By the way it worked.

On behalf of my colleague, you're welcome.
Feel free to contact us anytime, should you require our assistance.