A small high-speed commercial centrifuge has the following net cash flows and abandonment values over its useful life. The firm's MARR is 10% per year. Determine the optimal for the centrifuge to be abandoned if its current MV is $7,500 and it won't be used for more than five years. End of Year 1 2 3 4 5 Annual revenues less expenses $2,000 $2,000 $2,000 $2,000 $2,000 Abandonment value of machine $6,200 $5,200 $4,000 $2,200 $0 (estimated MV)