The Mirage Hotel and Casino located on the famous Las Vegas Strip and boasts an erupting volcano, a tropical rain forest with waterfalls, the white tigers of Siegfried and Roy, and a Dolphin Habitat. The Mirage Hotel is fielding many questions from prospective guests. Consequently, they established a hotline to answer questions from these guests. The costs of operating the hotline are all variable with respect to the number of calls in a month. At a volume of 25,000 calls in a month, the costs of operating the hotline total $475,000. To the nearest whole dollar, what is the expected total cost of operating the hotline at a volume of 23,900 calls in a month? (Assume that this call volume is within the relevant range)