(CVP, taxes) Joan Michaels has a small plant that makes playhouses. She sells them to local customers at $3,000 each. Her costs are as follows:

Costs

Per Unit

Total

Direct material

$1,200

Direct labor

400

Variable overhead

150

Variable selling

50

Fixed production overhead

$200,000

Fixed selling and administrative

80,420

Joan is in a 35 percent tax bracket.

a. How many playhouses must she sell to earn $247,507 after taxes?

b. What level of revenue is needed to yield an after tax income equal to 20 percent of sales?