public async Task <IActionResult> Index()
        {
            var d = await _departmentService.DeparmentCountAsync();

            var sr = await _salesRecordService.SalesRecodsCountAsync();

            var se = await _sellerService.SellerCountAsync();

            ViewData["department"]   = d;
            ViewData["salesRecords"] = sr;
            ViewData["sellers"]      = se;
            return(View());
        }