How to add price once the list is clicked (Spinner)?

I would to ask on how to add price once the list is clicked.
For example, I clicked the Single Room choice and I want the price to be visible as shown in the picture.
I would be grateful if anyone could help me to solve this asap.
Thank you.

Multiple ways are there.

Put the prices in a global variable list

When room picked 
Set textbox or label text to select list item list (global list) index spinner selection index

alright, thanks a lot.