Implementation of if else in MVC razor

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ASP.NET

C#3.5

I am pretty new to ASP.Net MVC. Sorry if my question seems stupid. but I am not sure how to get things to work between views and controllers.
I have a product list with the price and have static drop down to implement discount strategies based on discount plan selected.

Here is my product page

<pre><table class="table">
    <tr>
        <th>
            @Html.DisplayNameFor(model => model.ProductName)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.ProductPrice)
        </th>
        <th></th>
    </tr>

@foreach (var item in Model) {
    <tr>
        <td>
            @Html.DisplayFor(modelItem => item.ProductName)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.ProductPrice)
        </td>
       
            <td>

                @Html.DropDownList("Status", new List<SelectListItem>

                 {
                    new SelectListItem{ Text="Student Discount", Value = "1" },
                    new SelectListItem{ Text="Loyalty Discount", Value = "0" }
                 })
                
            </td>

        <

here is my Add product Controller

public ActionResult Index()
       {
           Customers customer = new Customers();

           return View(db.Products.ToList());
       }

What I have tried:

I want to show discounted price on the page based on the selection from the dropdown.

I am implementing this windows form application stretegy in my MVC application .
But i am not sure how to handle it in views and controller.

Any hints would be appreciated.
here is the code from windows form applicaion

 private void btnApplyDiscounts_Click(object sender, EventArgs e)
        {
            Customer customer = new Customer();
            if (chkLoyalty.Checked && chkStudent.Checked)
            {
                customer.SetDiscountStrategy(new LoyalStudentDiscount());
            }
            else if (chkLoyalty.Checked)
            {
                customer.SetDiscountStrategy(new LoyaltyDiscount());
            }
            else if (chkStudent.Checked)
            {
                customer.SetDiscountStrategy(new StudentDiscount());
            }
            else
            {
                customer.SetDiscountStrategy(new NoDiscount());
            }

            decimal price = customer.ApplyDiscount(numTotalSale.Value);
            lblFinalPrice.Text = price.ToString("C");
        }
    }
}