At location A$,$ fixed costs would be $$4,000,000$ per year, and variable costs $$0\mathrm{.}30$ per unit. At alternative B$,$ fixed costs would be $$3,600,000$ per year, with variable costs of $$0\mathrm{.}35$ per unit. If annual demand is expected to be $10$ million units, which plant offers the lowest total cost?