ShabaninModulekz/ClassLibrary_CountingSale/SaleCount.cs

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

namespace ClassLibrary_CountingSale
{
    public class SaleCount
    {
        public static double saleCount(int kol_vo, double prse)
        {
            double sale = 0;

            if (kol_vo >= 3)
            {
                sale = 5;
            }
            else if (kol_vo >= 5)
            {
                sale = 10;
            }
            else if (kol_vo >= 10)
            {
                sale = 15;

            }
            sale += Math.Floor(prse / 500);
            if (sale > 99)
            {
                sale = 99;
            }
            return sale;
        }
    }
}