1st: 12/6/05, Purchase of 100 from Random House at 60% discount, comes to $3.60 each, Total: $360 2nd: 8/1/06, Purchase of 100 from Random House at 60% discount, comes to $3.60 each, Total: $360 3rd: 10/1/06, Purchase of 100 from Random House at 60% discount, comes to $3.60 each, Total: $360 4th: 3/1/07, Purchase of 100 from Random House at 60% discount, comes to $3.60 each, Total: $360 5th: 10/11/07, Purchase of 200 from Random House,at 60% discount, comes to $3.60 each, Total: $719.20