/// <summary>
/// This method removes the last character from the ResultLabel
/// </summary>
private void RemoveLastCharacterFromResultLabel()
{
var lastChar = OutputString.Substring(OutputString.Length - 1);
if (lastChar == ".")
{
DecimalExists = false;
}
OutputString = OutputString.Remove(OutputString.Length - 1);
if (OutputString.Length == 0)
{
OutputString = "0";
}
ResultLabel.Text = OutputString;
}