ES.ESWebService ws = new ES.ESWebService();
    ES.ESErrorInfo err = null;

    XmlNode col = null;

    // Get the data from a TM1 View called Sales Entry in cube Financials
    XmlNode response = ws.TM1View("Financials", "SalesEntry", true, out err);
    if (err.Success == false)
        return;

    // Locate the rowset node
    XmlNode rowset = response.SelectSingleNode("RowSet");

    // Loop through all the rows
    foreach (XmlNode row in rowset.ChildNodes)
    {
        // Get the October node and decrease it by 3%
        col = row.SelectSingleNode("Oct");
        if (col != null)
            col.InnerText = Convert.ToString((Convert.ToDouble(col.InnerText) * .97));

        // Now take December and increase it by 5%
        col = row.SelectSingleNode("Dec");
        if (col != null)
            col.InnerText = Convert.ToString((Convert.ToDouble(col.InnerText) * 1.05));

    }

    // Now write the updates back to TM1
    ws.TM1ViewWrite( response.OuterXml, out err);