Hi I am trying to get the total price from the bsaket model in the check out process. I am using the code from the checkout sample:

@using Merchello.Core
@using Controllers;
@inherits Umbraco.Web.Mvc.UmbracoTemplatePage
@{
    Layout = "Master.cshtml";
}
@{
    var paymentMethods = MerchelloContext.Current.Gateways.Payment.GetPaymentGatewayMethods().Select(x => new SelectListItem()
    {
        Value = x.PaymentMethod.Key.ToString(),
        Text = x.PaymentMethod.Name
    });


}
<table>
    <tr>
        <td valign="top">
            <h3>Payment Method</h3>
            @using (Html.BeginUmbracoForm<CheckoutController>("SavePayment", new { area = "SolarStore" }, new { @class = "form form-horizontal", role = "form" }))
            {
                @Html.DropDownList("paymentMethodKey", paymentMethods, new { @class = "form-control" })




                <input type="submit" value="Proceed to receipt" />
            }
        </td>
        <td width="100"></td>
        <td>
            @Html.Action("RenderInvoiceSummary", "Checkout", new { area = "SolarStore", dataFromInvoice = false, invoiceKey = Guid.Empty })
        </td>
    </tr>
</table>

I need to send the total price in his line, since the credit card information is being enter in an IFrame of my payment provider

<iframe src="https://direct.tranzila.com/activenet/iframe.php?nologo=1&lang=il&sum=@totalPrice" width="370" height="455"></iframe>

Thanks