I have a field which contains a percantage value as a decimal. 

A text block is bound to this field and I want to display it with a % symbol.

For example:
If myfield = 5.0 then text should be displayed as "5.00 %"

This is my binding:

```
Text="{Binding Path=myfield, StringFormat=0.00## \%}"

```

which currently displays "500.00 %"

The '\' does not appear to be escaping the '%'.

How can I escape the '%' in the XAML StringFormat?