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. $874,298 b.$274,464 c.$22,608 d.$504,000