Ober Corporation, which has only one product, has provided the following data concerning its most recent month of operations: Selling price $ 120 Units in beginning inventory 0 Units produced 8,900 Units sold 8,400 Units in ending inventory 500 Variable costs per unit: Direct materials $ 38 Direct labor $ 36 Variable manufacturing overhead $ 6 Variable selling and administrative expense $ 9 Fixed costs: Fixed manufacturing overhead $ 151,300 Fixed selling and administrative expense $ 109,200 Required: a. Prepare a contribution format income statement for the month using variable costing. b. Prepare an income statement for the month using absorption costing

Results are below.

Explanation:

The variable costing method incorporates all variable production costs (direct material, direct labor, and variable overhead).

First, we need to calculate the total unitary variable cost:

Total unitary variable cost= 38 + 36 + 6 + 9

Total unitary variable cost= $89

Now, the income statement:

Sales= 8,400*120= 1,008,000

Total variable cost= 89*8,400= (747,600)

Total contribution margin= 260,400

Fixed manufacturing overhead= (151,300)

Fixed selling and administrative expense= (109,200)

Net operating income= (100)

The absorption costing method includes all costs related to production, both fixed and variable. The unit product cost is calculated using direct material, direct labor, and total unitary manufacturing overhead.

First, we need to calculate the unitary production cost:

Unitary production cost= 38 + 36 + 6 + (151,300 / 8,900)

Unitary production cost= $95

Now, the income statement:

Sales= 1,008,000

COGS= 8,400*95= (798,000)

Gross profit= 210,000

Total selling and administrative expense= 109,200 + (8,400*9)= (184,800)

Net operating income= 25,200

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