Calculate and Format a Percentage Using C#

/// <summary>/// Generates a percentage, formatted with "places" decimal places./// </summary>/// <param name="value">Value for which a percentage is needed</param>/// <param name="total">Total of all values from which to generate a percentage</param>/// <param name="places">How many decimal places to return in the percentage string</param>/// <returns>string with the percentage value</returns>public static string GetPercentage(int value, int total, int places){    Decimal percent = 0;    string retval = string.Empty;    String strplaces = new String('0', places);    if(value == null) value = 0;    if(total == null) total = 0;    if(value == 0 || total == 0)    {        percent = 0;    }    else    {        percent = Decimal.Divide(value, total) * 100;                if(places > 0)        {            strplaces = "." + strplaces;        }    }        retval = percent.ToString("#" + strplaces);    return retval;}