Oops, I thought I had mentioned that the dev said I need to use just one.
Anyways, I found someone's page with a simple tutorial on sprintf. I still am going to have to read all weekend to figure it out.
char buf; // needs to be long enough to hold the entire string plus one null character. sprintf(buf, "Value = %d%%", YourVariableName); // obviously, you change YourVariableName server.print(buf);
because its a formatter