Answer:
4,381 units per year
Step-by-step explanation:
fixed costs per year (other than depreciation) = $5,000
contribution margin per unit = $20 - $16 = $4
in order for the project to break even, the NPV must be $0
this means that our discounted annual cash flow must be equal to $50,000
discounted annual cash flow = present value / PV annuity factor
PV annuity factor, 8%, 5 periods = 3.9927
annual cash flow = $50,000 / 3.9927 = $12,523
each annual cash flow = $4X - $5,000 = $12,523
$4X = $17,523
X = $17,523 / $4 = 4,380.75 ≈ 4,381 units