I added PercentEditorProvider to Grid, and set it up to be in use for "PROB" column.  Somehow it does not display values in the columns as "xxx.xx%"  and I can not see why. The values displayed ad just decimal numbers.  Blow is mark up, what is missing in the setting ?

<ig:WebDataGrid ID="wdgAllOut" runat="server" Height="160px" Width="800px" AutoGenerateColumns="False"
        EnableAjax="False" OnRowUpdating="wdgAllOut_RowUpdating"
        DataKeyFields="idRow" DataMember="LR48OutDtTbl">
        <Columns>
         
            <ig:BoundDataField DataFieldName="OutcomeDesc" Key="OutcomeDesc" Width="150px">
                <Header Text="Outcome" />
            </ig:BoundDataField>
            <ig:BoundDataField DataFieldName="OutOrderNo" Key="OutOrderNo" Hidden="True">
                <Header Text="OutNum" />
            </ig:BoundDataField>
            <ig:BoundDataField DataFieldName="TAX_BEN" Key="TAX_BEN">
                <Header Text="Expected Tax Benefit" />
            </ig:BoundDataField>
            <ig:BoundDataField DataFieldName="PROB" Key="PROB">
                <Header Text="Probabillity of Occurence" />
            </ig:BoundDataField>
            <ig:BoundDataField DataFieldName="CUM_PROB" Key="CUM_PROB">
                <Header Text="Cummulative probability of occurence" />
            </ig:BoundDataField>
            <ig:BoundDataField DataFieldName="FINTAX_BEN" Key="FINTAX_BEN">
                <Header Text="FIN48 Tax Benefit" />
            </ig:BoundDataField>
            <ig:BoundDataField DataFieldName="ORGTAX_BEN" Key="ORGTAX_BEN">
                <Header Text="Original Tax Return Benefit" />
            </ig:BoundDataField>
            <ig:BoundDataField DataFieldName="RESERVE" Key="RESERVE">
                <Header Text="FIN48 Reserve Required" />
            </ig:BoundDataField>
            <ig:BoundDataField DataFieldName="idRow" Key="idRow" Hidden="True">
                <Header Text="idRow" />
            </ig:BoundDataField>
           
        </Columns>
        <EditorProviders>
            <ig:PercentEditorProvider ID="wdgAllOut_pep01">
                <EditorControl ClientIDMode="Predictable">
                </EditorControl>
            </ig:PercentEditorProvider>
        </EditorProviders>
        <Behaviors>
            <ig:Activation>
            </ig:Activation>
            <ig:EditingCore AutoCRUD="False">
                <Behaviors>
                    <ig:CellEditing>
                        <ColumnSettings>
                            <ig:EditingColumnSetting ColumnKey="CUM_PROB" ReadOnly="True" />
                            <ig:EditingColumnSetting ColumnKey="FINTAX_BEN" ReadOnly="True" />
                            <ig:EditingColumnSetting ColumnKey="ORGTAX_BEN" ReadOnly="True" />
                            <ig:EditingColumnSetting ColumnKey="RESERVE" ReadOnly="True" />
                            <ig:EditingColumnSetting ColumnKey="OutcomeDesc" ReadOnly="True" />
                            <ig:EditingColumnSetting ColumnKey="PROB" EditorID="wdgAllOut_pep01" />
                        </ColumnSettings>
                        <EditModeActions MouseClick="Single" />
                    </ig:CellEditing>
                </Behaviors>
            </ig:EditingCore>
        </Behaviors>
    </ig:WebDataGrid>