In: Economics
What is the present value of costs for a 30-year project that has annual maintenance costs of $1.1 million per year, but also requires additional major maintenance costing $9 million every ten years?
You may assume major maintenance is needed after 10 years and 20 years but not after 30 years (at the end of the project). Assume a discount rate of 8% and that all costs are incurred at the end each year.
Enter your answer in the box below in units of million $.
i = 8%
n = 30 years
PV of costs = P
P = (1.1/(1 + 8%) + 1.1/(1 + 8%)2 + .... + 1.1/(1 + 8%)30)
+ (9/(1 + 8%)10 + 9/(1 + 8%)20 + 9/(1 + 8%)30)
Using compound factor tables for i = 8% and n = 30
P = 11.258 x 1.1 + 6.994
P = $ 19.3778 mn