In 1990, Mayor Wilkins paid $5000 to the demon D'Hoffryn to obtain the Box of Gavrok so the mayor could ascend into demonhood. In 1995, D'Hoffryn billed the Mayor $6000 in expenses. Finally, in 1999, he delivered the Box to the Mayor, who valued it at $800,000. The Mayor's discount rate is 29% .
What is the annual worth of the Mayor's investment in obtaining the Box?
on excel