format to 2 decimal places?

If we have the players balance, which is a number set to 100 or 10.5 or similar, we want to show it as a text object to 2 decimal places. I can't find any way to do this, if you say

Global number balance = 100

...

   txtBalance set text to balance

it formats it to the min number of decimal places possible, e.g. "100.0" is displayed as "100" and 10.50 is displayed as "10.5" not "10.50"

Any ideas?

str(int(balance))&zeropad(int(balance*100)%100, 2)

Thank god you were here, I would have spent hours searching for a string function for this.

Ive put in a ".":

str(int(balance))&"."&zeropad(int(balance*100)%100, 2)

Thanks again!