The total inventory for that six-month block runs to well over 300,000 seats, though many were presold to groups and subscribers. Although Broadway in Chicago declined to reveal the total value of the inventory on sale, a very rough back-of-the-envelope calculation suggested that it was worth at least $20 million, and possibly a good deal more, given that premium seats were going for a minimum of $500. That inventory of premium-priced seats, "Hamilton" producer Jeffrey Seller told the Tribune in a previous interview, will account for, on average, about 10 percent of the house each night.