My company sells a new style of testosterone boosters for guys that enjoy working out. They are high quality, reasonably affordable and highly effective. All bottles of testosterone boosters would sell for $50 each. Given that the purchase price of the equipment to create each bottle is $20,000 (with the depreciation set at $2,000/year for a period of 5 years), the initial bottles to be sold in Year 1 is 3,000. Years 2 and 3 are predicted to go up to 5,000, while Years 4 and 5 leveled up to 6,000. Assume that the rent for the factory is $30,000 a year, it stays that way. To add to this, employees' wages are set aside at $10,000 per year. The discounted rate is at 10%

REVENUE

Year 1

Year 2

Year 3

Year 4

Year 5

No. of Units to Sell (@ $50/Unit)

3000

5,000

5,000

6,000

6,000

Total

$150,000

$250,000

$250,000

$300,000

$300,000

EXPENSES

Advertising

1,500

1,500

1,500

1,500

1,500

Wages

10,000

10,000

10,000

10,000

10,000

COGS

15,000

15,000

15,000

15,000

15,000

Rent

30,000

30,000

30,000

30,000

30,000

Depreciation

2,000

2,000

2,000

2,000

Total

56,500

58,500

58,500

58,500

58,500

Cash Flow

Profit

$93,500

$191,500

$191,500

$241,500

$241,500

Tax (12%)

11,220

22,980

22,980

28,980

28,980

Net Profit

82,280

168,520

168,520

212,520

212,520

Cash Flow

86,280

172,520

172,520

216,520

216,520

Purchase of Equipment

$20,000

Total Cash Flow = $864,360

Year 1 PV= $86,280/1.10 = $78,436.36

Year 2 PV= $172,520/1.21 =$142,578.51

Year 3 PV= $172,520/1.331 = $129,616.83

Year 4 PV= $216,520/1.4641 =$147,886.07

Year 5 PV= $216,520/1.61051 = $134,441.89

Total PV for five years = $632,959.66

NPV= $632,959.66 - 20,000 =$612,959.66

I need help with what the payback time will be?