Your company is evaluating whether to purchase an equipment or not. The initial cost is $49,355. According to your estimate, the equipment can have annual savings of $6,878 with 0.3 possibility or have annual savings of $5,183. The useful life of the equipment is 10 years, and with equal chance to have a salvage value of $19,512 or $15,456. Given MARR =6%, what is the expected NPV of the equipment? 10 points)