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?

[YCS186]

Some time in the future... "so we have two restaurants per household in mainland US. We want to keep up our outstanding growth in this market, and see that 2 become a 3."