I think this is mostly a US thing. Why use yearly salary? You’re not paid once a year, are you? Most likely once a month. Referencing monthly salary makes much more sense.
“I’m making 50k”. Great, now I have to guess - dollars? Monthly? Yearly? If yearly then what’s the monthly paycheck? Net? Gross?
It’s just a choice. It means nothing. Conventions are conventions merely because people started doing it that way. If you don’t understand, then ask a question.
What exactly is your challenge here?
I think they were asking a question? There isn’t a challenge they’re doing exactly what you said to do in the correct place to do it lmao.