Calling aspx page method using jquery

Question

I want to call a function from my code behind (C#) using Jquery but no luck. Below is my code behind function and my jquery:

 

[System.Web.Services.WebMethod]
        public static VmLowestLatestPrice LowestLatestPrice(string carMake, string carModel, string partsCode)
        {
            using (SqlConnection con = DBCS.DBCon())
            {
                SqlCommand cmd = new SqlCommand("spClaims_GetLowestLatestPrice", con);
                cmd.CommandType = CommandType.StoredProcedure;
                cmd.Parameters.AddWithValue("@carMake", carMake);
                cmd.Parameters.AddWithValue("@carModel", carModel);
                cmd.Parameters.AddWithValue("@partsCode", partsCode);

                con.Open();
                SqlDataReader rdr = cmd.ExecuteReader();
                while (rdr.Read())
                {
                    VmLowestLatestPrice price = new VmLowestLatestPrice();
                    price.LowestPrice = Convert.ToDouble(rdr["LowestPrice"]);
                    price.LatestPricePurchase = Convert.ToDouble(rdr["LatestPricePurchase"]);
                    return price;
                }

                rdr.Close();
                return null;
            }
        }

<script type="text/javascript">
        $(document).ready(function () {
            $('#<%=ddlDamageName.ClientID %>').change(function () {
                var partsCode = $('#ddlDamageName option:selected').val();
                var make = $('#lblMake').val();
                var model = $('#lblModel').val();
                $.ajax({
                    url: 'create-quotation.aspx/LowestLatestPrice',
                    method: 'post',
                    conttentType: 'application/json',
                    data: '{carMake: ' + make + ', carModel: ' + model + ', partsCode: ' + partsCode + '}',
                    dataType: 'json',
                    succes: function (data) {
                        $('#lblLowest').val(data.d.LowestPrice);
                        $('#lblLatest').val(data.d.LatestPricePurchase);
                    },
                    error: function (error) {
                        alert(error);
                    }
                });
            });
        });
    </script>

 My jquery version is 3.0.0.

 

Thanks for any possible assistance.