This tutorial will teach you Profit and Commission Calculation using C#.net.while calculating the commission from the profit include 1% commission.
Paste the code inside the ok button
private void button1_Click(object sender, EventArgs e)
double buyprice = double.Parse(txtBprice.Text);
double sellprice = double.Parse(txtSprice.Text);
double tot = sellprice - buyprice;
txtProfit.Text = tot.ToString();
double comm = tot * 1/100;
txtComm.Text = comm.ToString();
I have attached the video tutorial below it will help you to do this step by step.