C#

using System;<br />
using System.Collections.Generic;<br />
using System.Text;<br />
<br />
namespace Exer4Chpt6<br />
{<br />
    class Program<br />
    {<br />
        static void Main()<br />
        {<br />
            string inValue = "";<br />
            double salesAmount = 0;<br />
            double salesTax;<br />
            double shipAmount = 0;<br />
            double grdTotal;<br />
            const double INTEREST_RATE = .07;<br />
            double overAllTotal = 0;<br />
            double totalShippingAmt = 0;<br />
            double totalSalesTax = 0;<br />
<br />
            Console.WriteLine("Enter as many different sales amounts ");<br />
            Console.WriteLine("as you want. You will be shown the sales ");<br />
            Console.WriteLine("amount, sales tax, shipping amount, and ");<br />
            Console.WriteLine("the grand total. To Stop, enter");<br />
            Console.WriteLine(" -99");<br />
            Console.WriteLine();<br />
<br />
            Console.WriteLine("Please type in a sales amount.");<br />
            inValue = Console.ReadLine(); // Priming read, input before loop<br />
            while (inValue != "-99")<br />
            {<br />
              salesAmount = Convert.ToDouble(inValue);<br />
              salesTax = salesAmount * INTEREST_RATE;<br />
<br />
                Console.WriteLine("Please type in a sales amount.");<br />
                inValue = Console.ReadLine(); // reassigns data in inValue to check in loop<br />
            }<br />
        }<br />
    }<br />
}<br />

if (salesAmount < 250.01)<br />
{<br />
 shipAmount = 5.0;<br />
}<br />
else if (salesAmount < 500.01)<br />
{<br />
 shipAmount = 8.0;<br />
}<br />
else if (salesAmount < 1000.01)<br />
{<br />
 shipAmount = 10.0;<br />
}<br />
else if (salesAmount <= 5000.00)<br />
{<br />
 shipAmount = 15.0;<br />
}<br />
else if (salesAmount > 5000.00)<br />
{<br />
 shipAmount = 20.0;<br />
}<br />
else<br />
  Console.WriteLine("Please type in a sales amount.");<br />
<br />
                grdTotal = salesAmount + shipAmount + salesTax;<br />
                overAllTotal += grdTotal;<br />
                totalShippingAmt += shipAmount;<br />
                totalSalesTax += salesAmount;<br />
Console.WriteLine();<br />
Console.WriteLine("Your final sales amount was: {0:C2}", grdTotal);<br />
Console.WriteLine();<br />
Console.WriteLine("Your sales tax amount was: {0:C2}", totalSalesTax);<br />
Console.WriteLine();<br />
Console.WriteLine("Your shipping amount was: {0:C2}", totalShippingAmt);<br />
Console.WriteLine();<br />
Console.WriteLine("Your total bill is: {0:C2} ", overAllTotal);<br />
Console.WriteLine();