Set Format Decimal

set decimal 

decimalVar.ToString ("#.##"); // returns "" when decimalVar == 0

decimalVar.ToString ("0.##"); // returns "0"  when decimalVar == 0

String.Format("{0:0.00}", 123.4567m);      // "123.46"

decimalVar.ToString("n2");

credit ::https://stackoverflow.com/questions/164926/how-do-i-round-a-decimal-value-to-2-decimal-places-for-output-on-a-page