How to customize the column format in WinForms DataGrid (SfDataGrid)?

sfDataGrid1.Columns["Value"].Format = "00,00%";
sfDataGrid1.Columns["Value"].FormatProvider = new CustomFormatter();public class CustomFormatter : IDataGridFormatProvider
{
    public object Format(string format, GridColumnBase gridColumn, object record, object value)
    {
        if (value == null)
        {
            throw new ArgumentNullException((value == null) ? "format" : "args");
        }
 
        if (gridColumn is GridColumn && (gridColumn as GridColumn).MappingName == "Value")
        {
            var orderInfo = record as OrderInfo;
                return (Convert.ToDecimal((orderInfo.Value.ToString()))).ToString("0.00%");
        }
        return value.ToString();
    }
    public object GetFormat(Type formatType)
    {
        return this;
    }
    public string Format(string format, object arg, IFormatProvider formatProvider)
    {
        throw new NotImplementedException();
    }
}