Breadcrumb in nested layout

in my project I put some layout:

1. _Layout, as main layout
2. _Layout_Sales
3. _Layout_Production
4. _Layout_Project

where I put "Breadcrumb" above the main layout.

<div class="container body-content"><ul class="breadcrumb"><li><a href="#">Home</a></li></ul>

        @RenderBody()
        <hr /><footer><p>&copy; 2017 - Dev_Prj</p></footer></div>

is that right to put "Breadcrumb" above main layout ? or it should be put on the child layout ?

And, how to change "Breadcrumb" when the child page or great child page change ?

• ex: Home / Sales / Region / EU
• ex: Home / Project /Market