major challenges of valuing a business

What are some of the major challenges of valuing a business? For example, how would one accurately be able to project earning potential?

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word count  200 - 300

1- Work should be in your own words, no copying from other resources without proper referencing.

2- Support your response with at least 2 academic sources.

3- Follow APA style reference.

4- Zero match ratio.

5- WORD format only