SoftUni Bar Income

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
namespace BeforeExam
{
    class Program
    {
        static void Main()
        {
            //string a = "sdska%Radoslav%vkksa<Vafli>rsa76sau|5|dasla1.20dik$";
            var input = "";
            decimal totalIncome = 0.00m;
            while (input != "end of shift")
            {
                input = Console.ReadLine();
                if (input == "end of shift")
                {
                    break;
                }
                string[] splitByPercent = input.Split(new[] { '%' }, StringSplitOptions.RemoveEmptyEntries);
                string customer = "";
                Regex checkCustomer = new Regex(@"^[A-Z][a-z]*$");
                bool validCustomer = false;
                foreach (string word in splitByPercent)
                {
                    if (checkCustomer.IsMatch(word))
                    {
                        customer = word;
                        validCustomer = true;
                        break;
                    }
                }
                if (!validCustomer)
                {
                    continue;
                }
                string[] splitForProduct = input.Split(new[] { '<', '>' }, StringSplitOptions.RemoveEmptyEntries);
                string product = "";
                Regex checkProduct = new Regex(@"^[A-Za-z]*$");
                bool validProduct = false;
                foreach (string word in splitForProduct)
                {
                    if (checkProduct.IsMatch(word))
                    {
                        product = word;
                        validProduct = true;
                        break;
                    }
                }
                if (!validProduct)
                {
                    continue;
                }
                string[] splitForQuantityAndPrice = input.Split(new[] { '|' }, StringSplitOptions.RemoveEmptyEntries);
                int quantity = 0;
                Regex checkQuantity = new Regex(@"^[0-9]*$");
                bool validQuantity = false;
                string rawPrice = "";
                foreach (var word in splitForQuantityAndPrice)
                {
                    if (checkQuantity.IsMatch(word))
                    {
                        if (int.TryParse(word, out quantity))
                        {
                            validQuantity = true;
                            //break;
                        }
                    }
                    else if (word.EndsWith("$"))
                    {
                        rawPrice = word;
                    }
                }
                if (!validQuantity)
                {
                    continue;
                }
                rawPrice = rawPrice.Trim('$');
                char[] rawPriceToCharArr = rawPrice.ToCharArray();
                rawPriceToCharArr = rawPriceToCharArr.Where(n => n >= (char)48 && n <= (char)57 || n == (char)46).ToArray();
                rawPrice = string.Join("", rawPriceToCharArr);
                decimal price = 0.00m;
                Regex checkPrice = new Regex(@"^(\d*\.)?\d+$");
                bool validPrice = false;
                if (checkPrice.IsMatch(rawPrice))
                {
                    validPrice = true;
                }
                if (validPrice)
                {
                    price = decimal.Parse(rawPrice);
                }
                else
                {
                    continue;
                }
                decimal toPay = quantity * price;
                totalIncome += toPay;
                Console.WriteLine($"{customer}: {product} - {toPay:f2}");
            }
            Console.WriteLine($"Total income: {totalIncome:f2}");
        }
    }
}