Aria Acoustics, Inc. (AAI), projects unit sales for a new seven-octave voice emulation implant as follows: Year Unit Sales 1 79,000 2 92,000 3 106,000 4 101,000 5 82,000 Production of the implants will require $1,580,000 in net working capital to start and additional net working capital investments each year equal to 15 percent of the projected sales increase for the following year. Total fixed costs are $1,480,000 per year, variable production costs are $255 per unit, and the units are priced at $370 each. The equipment needed to begin production has an installed cost of $20,800,000. Because the implants are intended for professional singers, this equipment is considered industrial machinery and thus qualifies as seven-year MACRS property. In five years, this equipment can be sold for about 20 percent of its acquisition cost. AAI is in the 35 percent marginal tax bracket and has a required return on all its projects of 18 percent. Table 8.3. What is the NPV of the project? (Do not round intermediate calculations and round your final answer to 2 decimal places (e.g., 32.16).) NPV $ Please put into Excel format. I keep getting an impairment on my asset sale and I don't know if I've messed something up or how to handle it if it is indeed an impairment. Pasting my work below.

	Year	0	1	2	3	4	5
Equipment Cost		(20,800,000)
NWC		(1,580,000)
Sales			29,230,000	34,040,000	39,220,000	37,370,000	30,340,000
Variable Costs			(20,145,000)	(23,460,000)	(27,030,000)	(25,755,000)	(20,910,000)
Fixed Costs			(1,480,000)	(1,480,000)	(1,480,000)	(1,480,000)	(1,480,000)
Depreciation			(2,972,320.00)	(5,093,920.00)	(3,637,920.00)	(2,597,920.00)	(1,857,440.00)
EBT			4,632,680	4,006,080	7,072,080	7,537,080	6,092,560
Tax			(1,621,438.00)	(1,402,128.00)	(2,475,228.00)	(2,637,978.00)	(2,132,396.00)
Net Income			3,011,242	2,603,952	4,596,852	4,899,102	3,960,164		After tax salvage value
Depreciation			2,972,320	5,093,920	3,637,920	2,597,920	1,857,440		Cost		20,800,000
OCF			5,983,562	7,697,872	8,234,772	7,497,022	5,817,604		Depreciation		(16,159,520.00)
Change in Sales				13,000	14,000	(5,000)	(19,000)		Book value		4,640,480.00
Change in NWC			1,950.00	2,100.00	(750.00)	(2,850.00)	0		Salvage value		4,160,000
Recovery of Working Capital							1,579,550		Impairment		(480,480.00)
After tax salvage value							(312,312.00)		Tax		168,168.00
Net Cash Flows		(22,380,000.00)	5,985,512.00	7,699,972.00	8,234,022.00	7,494,172.00	7,084,842		After tax salvage value		(312,312.00)
Year	Cash Flows
0	(22,380,000.00)
1	5,985,512.00
2	7,699,972.00
3	8,234,022.00
4	7,494,172.00
5	7,084,842
NPV	$196,208.07