Auto Calculate duration in Talent Profile page and display in a field

Summary:

We are building a new Talent page in which we have 2 dates, can we auto calculate the difference and display that

Content (required):

As you could see in the above can we get the systme calculate the difference in Assignment Start and End Date and auto populate that in Duration in Years field.

Similarly, can we add a second question after Family Status which will be displayed if answer to Family Status is Yes.

Version (include the version you are using, if applicable):

23C

Code Snippet (add any code snippets that support your topic, if applicable):