Query

Unfulfilled orders from last week, messages nobody has answered yet: you ask the database, and it reads its own records and hands back the answer.

Every list and every count on a screen is one, saved and asked again each time you look. That's why a number beside a view is clickable, it came from the same question the list runs.

Worth knowing when a figure looks wrong: it's almost never a broken screen. It's a question that asked for something slightly different from what you meant.