Jose,
This is a Kendo issue rather than an Aware issue.
For some weird reason they have a strange view on number formats and I imagine there are many developers complaining.
In the meantime.... we need a little workaround until Kendo wake up.
On your form, edit the Attribute and in there click the Advanced button (below the Styles Button)
Enter the following.....
config.config.decimals = 4