Please help me. I provided the problem and my attempt at it.

The management of The Alexandrov Company decided to acquire the sue of a machine to be used in its manufacturing process. The machine it needs is manufactured only by Chang, Incorporated. The machine can be used for ten years and then sold for $10,000 at the end of its useful life. Chang's management has presented Alexandrov with the following options:

Lease: The machine could be leased for a ten-year period for an annual lease payment of $25,000, with the first payment due on the date that the agreement is signed. All maintenance and insurance costs for the machine, which are expected to be about $5,000 per year, would be paid by Chang, and the machine would be returned to Chang at the end of the lease term.

Purchase: The machine could be purchased for $130,000 in cash.

Assuming that (i) Alexandrov and Chang will agree on a transaction on November 30, 2010, and (ii) the current interest rate for Alexandrov's long-term borrowing is 12%, which of the two options would be the most economically attractive to Alexandrov?

My work:
Lease: 25,000 * 19.6546 = 491,365
(factor for future value of annuity due for 12%, 10 periods)

Purchase: 130,000 + (5,000 * 19.6546) - 10,000 = 218,273

Thanks!