The follow data relates ot year 20XX for Plano Manufacturing Company:

Units produced - 2,000

Units sold - 1,800

Selling price - $200 / per unit

Direct material costs - $80,000

Direct labor costs - $26,000

Variable overhead - $18,000

Variable selling costs - $6,000

Fixed overhead - $40,000

Fixed selling costs - $60,000

Required:

a) Calculate cost of goods sold under throughput costing, variable costing, and absorption costing.

b) Calculate ending inventory under throughput costing, variable costing, and absorption costing.

c) Calculate operating income under throughput costing, variable costing, and absorption costing.