The following set of costs and benefits is given for a 10-year period for a national park that will be either protected or mined.

Year

0 1 2 3 4 5

Cost (1000of $) 1250

Recurring 130 130 130 130 130

Foregon Cost. 20 20 20 20 20 20

Benefits

Tourist Revenue 300 300 300 300 300

Calculate the net present value at 5% and 10% discount rate