Values after decimal

public class DoubleFormatter : IFormatProvider, ICustomFormatter
{
  // always use dot separator for doubles
  private CultureInfo enUsCulture = CultureInfo.GetCultureInfo("en-US");

  public string Format(string format, object arg, IFormatProvider formatProvider)
  {
    // format doubles to 2 decimal places
    return string.Format(enUsCulture, "{0:0.00}", arg);
  }

  public object GetFormat(Type formatType)
  {
    return (formatType == typeof(ICustomFormatter)) ? this : null;
  }
}