Tech Corporation has 5,000 obsolete desk calculators that it manufactured at a total cost of $145,000. If Tech upgrades the calculators at a total cost of $190,000, it can sell them for a total of $250,000. As an alternative, Tech can sell the calculators in their present condition for $50,000. Tech decides to upgrade the calculators. At what per-unit selling price would Tech be as well off as if it just sold the calculators in their present condition? @ $50 @ $38 $48 O $77 None of the above