Hi
Try the solution described in this topic: http://wordpress.org/support/topic/where-are-the-decimals
it helped me to solve the problem
Cheers
Manfred
I have excactly the same problem, I think the problem is somewhere in the method wc_price()
Here is my topic: Decimals not working at price
I have the same problem.. Generation of Sitemap with Yoast WordPress SEO only works when W3Total Cache is disabled.. Hope anybody will find a solution for this problem..
Thanks in advance..