Tim Smunt has been asked to evaluate two machines. After some investigation, he determines that they have the costs shown in the following table: I: Machine A Machine B Original Cost $15,000 $28,000 Labor per year $2,000 $4,800 Maintenance per year $4,300 $800 Salvage value $2,000 $7,000 He is told to assume that: 1. The life of each machine is 3 years. 2. The company thinks it knows how to make 8% on investments no more risky than this one. 3. Labor and maintenance are paid at the end of the year. The NPV for Machine A = $ - 29,648' (round your response to the nearest whoie number and inciude a minus sign if necessary). The NPV for Machine B = $|:| (round your response to the nearest whole number and include a minus sign if necessary)