How to change the URL of your blog?

Warning:Before you change your URL i must warn that if you  change your URL then your site traffic can go to low level cause which links were related to your blog or your content that all will be
deadlinks.So sure that before you change your URL.
First go to your blogger dashboard then click on [settings] .Under the settings there will be some options .

 
From them click on [publishing].There a page will be appier like this .

Then put your new URL on that blank box like shown and save it.