(Ignore Income Taxes in This Problem

(Ignore income taxes in this problem.) Almendarez Corporation is considering the purchase of a machine that would cost $320,000 and would last for 7 years. At the end of 7 years, the machine would have a salvage value of $51,000. By reducing labor and other operating costs, the machine would provide annual cost savings of $72,000. The company requires a minimum pretax return of 18% on all investment projects.
-The present value of the annual cost savings of $72,000 is closest to:

A) $22,608
B) $874,298
C) $504,000
D) $274,464