Time left 1:15:08 (NOTE: ENTER YOUR ANSWER WITHOUT THE $ AND COMMA, ROUNDED TO THE NEAREST DOLLAR, for instance as 10023, not as $10,022.78. Include negative sign in front of your answer, if appropriate. DO NOT ROUND IN YOUR CALCULATION STEPS (USE CALCULATOR MEMORY FUNCTIONS) Waldorf Manufacturing is operating a production facility, which will be closed in 4 years. A decision needs to be made whether to keep the existing machine in operation for 4 more years, despite its significant wear and tear, or whether to acquire a new machine instead, only to be used for 4 years before sold. The existing machine could be sold for $7000 today, or if kept for 4 more years, could be sold for $3000 in 4 years. Its annual operating expenses are $19000. A new machine could be acquired for $45,000, and re-sold for $20,000 in 4 years. Its annual operating expense would be $10,000. Replacing the existing machine with a new one would have no impact on revenues. Assume 10% cost of capital. If we set up the problem as comparing the present worth of the defender vs the present worth of the challenger, what is the present worth of the defender? Notes: Use the $7000, $3000, and $19000 in your calculations, and format your answer as the present worth of the existing machine's cash flows (with the negative sign in front). Do not worry about computing hallanger's present worth.