How do I find out the sales of a book?

Excuse me, could you please help me understand how one might go about finding out the sales figures for a particular book? I'm interested in knowing the market performance of a recent release and am not sure where to start. Is there a specific database or website that compiles this information? Alternatively, would I need to contact the publisher directly to inquire about their sales figures? I appreciate any guidance you can offer on this matter.