Hello! I need to calculate the total rate with amount of days selected. This was already described in the forum:

Since you have provided more details about what you're trying to achieve, we will be glad to help you on this thread: https://www.jotform.com/answers/878667 

That is a thread that you've already opened to ask the same question, but you provided more details as well as the link to the forum thread where is explained what you're looking for. 

We will help you there as soon as possible.

Please post your reply there as this will help us to assist you better and avoid confusion. 

Thanks.