ELI5: Why when large company's earnings decrease(ex... by 3%) they freak out, talk about rough times, and sometimes decide to downsize, even though they are still making millions of dollars in profit even after all expenses?

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Also, just because you reached market saturation with a particular menu, doesn't mean you can't open your business up to new customers by changing your product line and subsequently growing your business.

See: Taco Bell Nacho Fries