Order price or star hotels by custom field

Hi,

I have put some hotels data in my site (http://www.roomsfinder.net) but I couldn’t order them.

For example, I want to show hotel in one tag orderby price (custom field is price and value is number 1,2,3,… I use this link: http://www.roomsfinder.net/tag/gyeongju-si?meta_key=price&orderby=meta_value_num, I think it is Ok, but it doesn’t appear right results.

How can I do to have right result?
Thanks!