The Financial Calculator Company proposes to invest $$12\mathrm{.}55$ million in a new calculator$-$making plant. Fixed costs are $$3$ million per year. A financial calculator costs $$21$ per unit to manufacture and sells for $$41$ per unit. If the plant lasts for four years and the cost of capital is $20$ percent, what is the break$-$even level $($i$.$e$.,$ NPV $=0)$ of annual sales? $($Assume that revenues and costs occur at the end of each year. Assume no taxes.$)$ Round to the nearest $1,000$ units.

Multiple Choice

$160,000$ units

$310,000$ units

$352,000$ units

$392,000$ units