Regular Expression/ SoftUni Bar Income

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Text.RegularExpressions;


namespace SoftUniBarIncome
{
    class Program
    {
        static void Main(string[] args)
        {
            string input = string.Empty;

            string pattern = @"^%(?<name>[A-Z][a-z]+)%[^|$%.]*<(?<product>\w+)>[^|$%.]*\|(?<count>\d+)\|[^|$%.]*?(?<price>[-+]?[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?)\$";

            double total = 0;

            while ((input = Console.ReadLine()) != "end of shift")
            {
                if (Regex.IsMatch(input, pattern))
                {
                    Match digit = Regex.Match(input, pattern);

                    string name = digit.Groups["name"].Value;
                    string product = digit.Groups["product"].Value;
                    int count = int.Parse(digit.Groups["count"].Value);
                    double price = double.Parse(digit.Groups["price"].Value);

                    double money = price * count;

                    Console.WriteLine($"{name}: {product} - {money:f2}");

                    total += money;
                }
            }

            Console.WriteLine($"Total income: {total:f2}");
        }
    }
}