using System;

public class TipCalculator

{

    public static void Main()

    {

        Console.WriteLine("Enter the food subtotal:");

    //   string foodSubtotalString = Console.ReadLine();

    //   double foodSubtotal = Convert.ToDouble(foodSubtotalString);

    double foodSubtotal = Convert.ToDouble(Console.ReadLine());

    //   foodSubtotalString = foodSubtotal.ToString("#.##");

    //   Console.WriteLine(foodSubtotalString);

    Console.WriteLine("Enter the rating:");

    int rating = Convert.ToInt32(Console.ReadLine());

    double foodtax = 0.06 * foodSubtotal;

    double tipAmount = 0;

    if(rating >= 5)

    {

        tipAmount = 0.15 * foodSubtotal;

    }

    else

    {

        tipAmount = 0.08 * foodSubtotal;

    }

    double total = foodSubtotal + foodtax + tipAmount;

    total = Convert.ToDouble(total.ToString("#.##"));

    Console.WriteLine("Amount spent on food:\t" + foodSubtotal);

    Console.WriteLine("Food Tax:\t" + foodtax);

    Console.WriteLine("Suggested Tip:\t" + tipAmount);

    Console.WriteLine("Total Cost:\t" + total);

  }

}

​