public Product CalculatePrice(string item, string discountValue)
 {
     var items = Helper.GetItemPriceList();
     double itemPrice;
     Product product = null;
     if (items.TryGetValue(item, out itemPrice))
     {
         product = new Product
         {
             ProductName = item,
             TotalRate = itemPrice,
             Discount = discountValue,
             BaseRate = itemPrice
         };
     }
     return product;
 }
        public Entities.Product CalculatePrice(string item, string discountValue)
        {
            var items = Helper.GetItemPriceList();
            double itemPrice;
            Product product = null;
            if (items.TryGetValue(item, out itemPrice))
            {
                int val = Convert.ToInt32(discountValue);
                double discountedPrice = (itemPrice/100)*val;
                double totalPrice = itemPrice - discountedPrice;

                product = new Product
                {
                    ProductName = item,
                    TotalRate = totalPrice,
                    Discount = discountValue,
                    BaseRate = itemPrice
                };
            }
            return product;
        }