C# percentage is 0
<p>I have a problem when I try to solve simple equation. My equation is find the percentage of student marks.
This is my code:</p>

<pre><code>using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace thered_Try
{
    public partial class Form1 : Form
    {
        decimal res;

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            int oneee = 300;
            int two = 1000;
            int thee = 10;
            res = (oneee / two) * 10;
            label1.Text = res.ToString();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            Form2 form = new Form2();
            form.ShowDialog();
        }
    }
}
</code></pre>

<p>The result is 0. Where is my mistake? </p>
