I'm not positive if prices are on the site. I think it's $14 for non-members, much less with membership....one of the cheapest places around as they're not profit oriented.
Actually I felt after I posted the above message that I should have stated that I have no financial interest in it. All Sivananda teachers are unpaid. We teach there for free because it's a great place and we strongly believe in it!
If you go there, tell them Janaki told you about it! Hope to see you there sometime.