How to reuse drop down list value to same view bat different text box change function

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ASP.NET5

i am working with billing controller , in a start of view i select a value from drop down list from two option "cash on delivery " / "check/card payment "

in the end of the billing view i need this value to conformation of delivery and payment

but this value get null


PmtID is drop down list id

and

conformyn is @html editfor()....

need a healp to solve this

What I have tried:

jquery

$(function () {
			$("#conformyn").change(function () {
				var newcrg = ($("#conformyn").val());
				if (newcrf !== "") {
					var	jbi =  ($('#PmtID').val());
							if ( jbi = 1) {
								$(".Port").show()
								$(".pod1").show()
								$(".cod1").show()

								$(".pOorg1").show()
								$(".pOorgCuntry1").show()

								$(".Fdd1").show()
								$(".Fddcuntry1").show()
							}
				}
			});
		});

<td>
                    @Html.DropDownListFor(m => m.PmtID, ViewBag.payas SelectList, "-- Payment Type -- ", new { @class = "form-control" })
                    @Html.ValidationMessageFor(model => model.PmtID, "", new { @class = "text-danger" })

                </td>