How to output the correct path?

Question

WordPress

Hello. The site has a blog page: domain/blog. But, I have posts on this page, but the address bar does not have the address I need. I would like the following: domain/blog/ and there is already a slug of this page (it seems so). Now I have a click on the post, and when it goes to the post in the address bar like this: domain/first (first is what I wrote in the permalink when posting the post)

To make it clearer (the domain is made up):

News page: mega.ru/blog Post
page to which we are moving: mega.ru/blog/first

Answer 1