Decrease Decimal in a combined text/formula cell
 

Subject line says it all. I have a few cells where I have combined text with
a formula. The formula produces a decimal and I want to decrease the number
of decimal spaces therein. Using the basic buttons doesn't seem to work, nor
does going through the "format cell" system work. How do I decreae the
number of decimal places in a formula when the formula is combined with text.
Below is a formula to use as an example...

="11 ("&11/C2%&"%)"
displays... 11 (52.3809523809524%)

I want it to display... 11 (52.38%)

Thanks,
Zakhary