If you need to print text that you've already formatted, pass it as a String argument to a format-class function.
For example:
Code:
char myString[32];
Format(myString, sizeof(myString), "%s", "5%");
PrintToChatAll("%s", myString);
This example is really contrived, but there are other reasons to do it. I ended up fixing a bug in colors.inc that was doing double formatting this way.