C# percentage is 0

Question

I have a problem when I try to solve simple equation. My equation is find the percentage of student marks. This is my code:

using System;
using System.Collection         


        

Answer 1

you are using int and when you are dividing it by 

(1000/300) it will result 0.3. But the data type is int, so result is 0;

Please use below 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 =0;

        public Form1()
        {
            InitializeComponent();
        }

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

        private void button2_Click(object sender, EventArgs e)
        {
            Form2 form = new Form2();
            form.ShowDialog();
        }
    }
}

Thanks, Let me know your result.