Ballpark figure
When we use the phrase “ballpark figure,” it talks about an approximate or rough estimate. It means giving a general idea or range of a number without being too precise or exact. The idiom “ballpark figure” is often used in informal conversations, discussions, or negotiations when people want to convey an approximate value or range without getting into specific details or calculations.
It’s a way of giving an idea or a range without being too precise or specific. It’s like saying, “This is about how much it might be, but it’s not an exact amount.” So, when someone uses the phrase “ballpark figure,” they’re referring to a rough estimate rather than an exact number.