public ActionResult Create([Bind(Include = "id,Insurance,mobileCost,telephoneCost,electricity,rent,officeSupplies,sanitarySupplies,month")] accountant accountant) { if (ModelState.IsValid) { var Tlist = db.NewTrucks.ToList(); double tinsurance = 0.00; foreach (var item in Tlist) { tinsurance = tinsurance + item.insurance; } var mlist = db.Maintenances.ToList(); double tmaintence = 0.00; foreach (var item in mlist) { tmaintence = tmaintence + item.MaintainPrice; } accountant.month = accountant.monthly() + tinsurance + tmaintence; db.accountants.Add(accountant); db.SaveChanges(); return(RedirectToAction("Index")); } return(View(accountant)); }