Use the following information to answer two questions :
Your company is analyzing purchase of a machine costing $5,900 today.
The investment promises to add $18,500 to sales one year from today,
$14,500 two years from today,
and $18,000 three years from today.
Incremental cash costs should consume 75% of the incremental sales.
The tax rate is 30% and the company's financing rate is 8.2%.
The investment cost is depreciated to zero over a 3-year straight-line schedule. What is the project's NPV?