public static void ProcessBook()
{
ProcessBook processBook = new ProcessBook();
Commision commision = new Commision();
Console.WriteLine(processBook.CreateDuplicatePackingSlip(true));
Console.WriteLine(commision.CommisionPayment());
}
public static void ProcessPhysicalProduct()
{
ProcessPhysicalProduct processPhysicalProduct = new ProcessPhysicalProduct();
Commision commision = new Commision();
Console.WriteLine(processPhysicalProduct.GeneratePackingSlip(true));
Console.WriteLine(commision.CommisionPayment());
}