public static void Main()
DateTime currentDateTime = DateTime.Now;
DateTime dt2 = new DateTime(2021, 12, 01);
int subtotal = oneTwo + two + three + four + five;
int subtotalDiscount = subtotal - discount;
double tax = taxRate * subtotalDiscount;
double total = subtotalDiscount + tax;
Console.WriteLine("{0, -50}{1, 50}{2, 30}","BILL TO", "Invoice No:","#INV02081");
Console.WriteLine("{0, -50}{1, 50}{2, 30}","Allen Smith", "Current Date:", currentDateTime );
Console.WriteLine("{0, -50}{1, 50}{2, 30}","87 Private St, Seattle, WA", "Due Date:", dt2 );
Console.WriteLine("allen@gmail.com");
Console.WriteLine("990-302-1898");
Console.WriteLine(" ─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────");
Console.WriteLine("{0, 4}{1, -54}{2, -28}{3, -38}{4, -55}", " ", "DESCRIPTION", "QTY/HR", "UNIT PRICE", "TOTAL");
Console.WriteLine("{0, -60}{1, -5}{2, 30:C2}{3, 35:C2}", "Installed new kitchen sink (hours)", "3", oneOne, oneTwo);
Console.WriteLine("{0, -60}{1, -5}{2, 30:C2}{3, 35:C2}", "Toto sink", "1", two, two);
Console.WriteLine("{0, -60}{1, -5}{2, 30:C2}{3, 35:C2}", "Worcester greenstar magnetic system filter", "1", three, three);
Console.WriteLine("{0, -60}{1, -5}{2, 30:C2}{3, 35:C2}", "Nest smart thermostat", "1", four, four);
Console.WriteLine("{0, -60}{1, -5}{2, 30:C2}{3, 35:C2}", "Worcester Greenstar 30i", "1", five, five);
Console.WriteLine("{0, 105}{1, 25:C2}", "SUBTOTAL", subtotal);
Console.WriteLine("{0, 105}{1, 25:C2}", "DISCOUNT", discount);
Console.WriteLine("{0, 105}{1, 25:C2}", "SUBTOTAL LESS DISCOUNT", subtotalDiscount);
Console.WriteLine("{0, 105}{1, 25:P0}", "TAX RATE", taxRate);
Console.WriteLine("{0, 105}{1, 25:C2}", "TOTAL TAX", tax);
Console.WriteLine("{0, 130}", "─────────────────────────────────────────");
Console.WriteLine("{0, 105}{1, 25:C2}", "Balance Due: ", total);