The city of St. John's is installing a new swimming pool in the east end recreation centre. One design being considered is a reinforced concrete pool that will cost $6000000 to install. Thereafter, the inner surface of the pool will need to be refinished and painted every 10 years at a cost of $400000 per refinishing. Assuming that the pool will have essentially an infinite life, what is the present worth of the costs associated with the pool design? The city uses a MARR of 5%.

Review the following table and calculate the present worth of the project for a -5% change in refinishing costs.Round your answer to the nearest dollar.

Show your solving for that specific box only.

Parameter -10% -5% Base Case +5% +10% Construction Costs $6000000 Refinishing Costs $400000 MARR [%] 5 Present Worth of Costs -10% -5% 0% +5% +10% Changes to Construction Costs Changes to refinishing Costs ????? Changes to MARR