Shifting in String Format (With built in functions)

[techgnome]

Hi all,
Consider a third party control to mimicking a progressbar with percentage. It has a FormatString in its properties which follows these type of custom numeric format strings provided by Microsoft.

How can I perform a decimal placement shifting to left (like diving per 10) not in a program way, on once done in properties in designing mode. i.e. for "271" (Bar maximum is 1000) the string "27.1%" is expected.

What I've tried:
Exponential (scientific notation) was only tested but I have no idea how to get rid of 'e' or 'E' in string.

I would expect the control to handle that itself... if the max is 1000 and the value is 271... and the format is "%" i'd expect it to display "27.1%" or "27%" automatically ... especially if it's using the value ... other wise it would need an additional property to track the displayValue ...

-tg