The Main topic: MANAGERIAL ACCOUNTING - Differential Analysis

The Question:

What types of financial data that would be included and excluded in differential analysis for a company (Apple Inc for example). Propose which specific revenues and costs should be considered in an evaluation to drop or keep a: #Customer # Product line ?

In addition, explain sunk and opportunity costs as they relate to the company. Should these costs be considered in differential analysis? Why or why not?

Optional Resource: (Chapter 7)

https://2012books.lardbucket.org/books/accounting-for-managers/index.html

Note: Deep analysis and scholarly resources are required