Use a NumericUpDown with the max/min set to 100/0, and a label next to it for the % sign. If you have knowledge, let others light their candles at it. Margaret Fuller (1810 - 1850) [My Articles]  [My Website]

form.show or form.ShowDialog SOFTDEV If you have knowledge, let others light their candles at it. [ Let's work to help developers, not make them feel stupid ]

That is a stupid question! No one should response that decimal dec1, dec2; if (Decimal.TryParse(TextBox1.Text.Trim(), out dec1) && Decimal.TryParse(TextBox2.Text.Trim(), out dec2)) { Label1.Text = Math.Round(Decimal.Add(dec1, dec2), 2).ToString(); } Just please don't ask how to do a subtraction....... :laugh: :laugh:

<table id="tb" border="1" style="background-color:Red"> <tr> </tr> </table> :)