如何在C#中计算MVC应用查看页面的百分比？

// Controller
public class PageViewController : Controller
{
    public ActionResult Index()
    {
        return View();
    }

    [HttpPost]
    public ActionResult CalculatePercentage(int currentScrollPosition, int totalPageHeight)
    {
        double percentage = (double)currentScrollPosition / totalPageHeight * 100;
        return Json(new { percentage });
    }
}

// View (Razor syntax)
<script>
    $(window).scroll(function () {
        var currentScrollPosition = $(window).scrollTop();
        var totalPageHeight = $(document).height();
        
        $.ajax({
            url: '@Url.Action("CalculatePercentage", "PageView")',
            type: 'POST',
            data: { currentScrollPosition: currentScrollPosition, totalPageHeight: totalPageHeight },
            success: function (data) {
                var percentage = data.percentage;
                // Do something with the percentage value
            }
        });
    });
</script>