the going rate (for something)
The typical cost of something. What's the going rate for a new heating system? Ours is on the fritz. A: "$200 seems pretty steep for such a small repair!" B: "That's the going rate, I'm afraid."
the ˌgoing ˈrate (for something)
the usual amount of money paid for goods or services at a particular time: They pay slightly more than the going rate for freelance work.