Given the following data, calculate the present worth of the investment.

First cost = $60, 000 Project life = 10 years Salvage value = $15, 000

MARR = 25%

General price inflation = 4% per year

Annual cost 1 = $4, 500 in Year 1 and inflating at 2.5% per year

Annual cost 2 = $7, 000 in Year 1 and inflating at 10.0% per year

Annual cost 3 = $10, 000 in Year 1 and inflating at 6.5% per year

Annual cost 4 = $8, 500 in Year 1 and inflating at ? 2.5% per year