public static void Main()
Console.WriteLine("Skriv heltallet ");
string heltalInput = Console.ReadLine();
Console.WriteLine("Skriv procentsatsen ");
string procentInput = Console.ReadLine();
double heltal = Convert.ToDouble(heltalInput);
double procent = Convert.ToDouble(procentInput);
double andel = heltal*procent/100;
Console.WriteLine("Resultat: " + andel);
Console.WriteLine("Indtast venligst et gyldigt tal!");