How to take a string and convert it into a int in swift 3 for text that is being segued

I would like to take lebelText and divide it by 2. Then reconvert the result to a String so it can be displayed in viewdidload. lebelText is being segued.

      import UIKit

    class restultViewController: UIViewController {

     @IBOutlet var dxe: UILabel!

     var LebelText = String()

        override func viewDidLoad() {
        dxe.text = LebelText


        override func didReceiveMemoryWarning() {
     // Dispose of any resources that can be recreated.

It’s an initialiser, which looks like a cast:

let value = 123
let stringValue = String(value)
let intValue = Int(stringValue)