A company wants to buy a lease for a mine that has four more years of productive life. It estimates that the returns will be $2095 at the end of the first year, $48813 at the end of both second and fourth year, and $66465 at the end of the third year. Using an interest rate of 8.6% p.a., the net present value if the lease costs $100000 is:

(Give your answer to the nearest cent, omitting the dollar sign.)