BiscuitsFactory-Math.Floor()

using System;

namespace BiscuitsFactory
{
    class MainClass
    {
        public static void Main()
        {
            int biscuitsPerDayPerWorker = int.Parse(Console.ReadLine());
            int countOfWorkers = int.Parse(Console.ReadLine());
            int anotherFactoryProductionFor30Days = int.Parse(Console.ReadLine());
            double myProductionFor30days = 0;
            double dailyProduction = Math.Floor((double)biscuitsPerDayPerWorker * countOfWorkers);//must add Math.Floor in the beginning for correct result
            double dailyProductionEveryThirdDay =Math.Floor((double) dailyProduction -  (0.25 * dailyProduction));

            for (int day = 1; day <=30; day++)
            {

                if (day % 3 != 0)
                {
                    myProductionFor30days += dailyProduction;
                }

                else if (day % 3 == 0)
                {
                    myProductionFor30days += dailyProductionEveryThirdDay;
                }
            }
            Console.WriteLine($"You have produced {myProductionFor30days} biscuits for the past month.");
            if (myProductionFor30days > anotherFactoryProductionFor30Days)
            {
                Console.WriteLine($"You produce { Math.Floor(myProductionFor30days-anotherFactoryProductionFor30Days)/anotherFactoryProductionFor30Days*100:F2} percent more biscuits.");
            }
            else
            {
                Console.WriteLine($"You produce {Math.Floor(anotherFactoryProductionFor30Days-myProductionFor30days)/anotherFactoryProductionFor30Days*100:F2} percent less biscuits.");
            }
         }
       }
    }