Billy Bob's Crab & Oyster Shack wants to reduce the cost of labour by replacing some labour with machines. If Billy Bob's were to purchase a machine to shuck the oysters, it can save $50,000 a year for 10 years. The new machine will cost $650,000 and it will be worth $50,000 at the end of the 10 year period. The firm believes it will need $10,000 in spare parts inventory (increase in NWC), which it can sell for the $5,000 at the end of the project. The machine has a 20% CCA rate and the firm has a 15% tax rate. If they want a 20% return on their investment, what is the NPV?