Doing calculations with form input and returning result

Hi, I’m looking into Ninja forms and wondering if I can achieve the following with it (I am fine with doing some coding):

I’d like the user to input some numbers using number inputs, then use these numbers on the server side to make some calculations (I already have these calculations in PHP, so don’t want to do them on the client side) and then return these calculated values. I then want to capture these returned calculated values using Javascript on the client-side and update some DOM elements according to the values.

I am wondering what would be the best way to achieve all of this with Ninja forms.
I do know Javascript/jQuery and PHP, but not very proficient with the WordPress or Ninja forms APIs.

Any help would be appreciated.

Thank you.