Your company is evaluating whether to purchase an equipment or not. The initial cost is $43,365. According to your estimate, the equipment can have annual savings of $6,904 with 0.5 possibility or have annual savings of $5,180. The useful life of the equipment is 10 years, and with equal chance to have a salvage value of $18,839 or $15,069. Given MARR =6%, what is the expertad NPV of the equipment? (10 points)