Adding two separate fields together

As the title suggest:

I have a sign up form I am creating that has a couple different variables that are effecting final price of the form. It is signing up to stay in a hotel.

Basically one field is a dropdown with different pricing rates for the different hotels. ($100, $120, etc)
The next field allows selection of the number of nights staying at the hotel that was chosen.
I need a way to calculate the total derived from two separate fields.

This is what it would look like as an equation: Hotel A ($100) x Number of Nights (2) = total ($200)
Is there a way to have the form calculate this across the two fields?

Hi

Basically, you can use Fee Formula to calculate the total fee. The instruction are :

1. Set Fee Field property of the pricing rates to No. But still enter data into Fee Values as if this is a custom fee field .

2. Set the Fee Field property of number of nights to Yes. In the fee formula of this field, enter :

[FIELD_VALUE]*[PF_PRICE_RATES]

(replace PF_PRICE_RATES with actual name of pricing rates custom field in uppercase) .

After that, it will work as expected .

If it still doesn't work, please submit a support ticket gives me administrator account of your site so that I can check the setup for you !

Regards,

Tuan

Thank you that did work. However I am running into another problem.

I realized that I need to combine more than two fields to get a total on this form.
There are a total of 4 fields involved in the calculation of the total amount.

I have:
1. Hotel Requested (which has per night amount like $105)
2. How Many Nights Staying
3. Number of King Rooms Requesting
4. Number of Double Rooms Requesting

Can I use the same method of having the first 3 fields with the fee field turned off then enabling the 4th field as the fee field? Or is that to complicated for it to handle?

Addition and multiplication would be needed in this calculation. Figured it would look something like this, using the last field (number of double rooms) as the one to input the code:

([FIELD_VALUE]+[PF_KING_ROOMS])*[PF_HOTEL_STAYING]*[PF_NIGHTS]

Is that correct or is that something the form is not capable of?
I attached a screen shot of the form.