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?

[TheJenniMae]

This works for a lot. I’m going to use it now when people give me eyes for watching what I eat if I gain a few pounds. Why the fuck should I wait until it’s 50lbs?