Answer:
Results are below.
Explanation:
<u>The variable costing method incorporates all variable production costs (direct material, direct labor, and variable overhead).</u>
Unitary production variable cost= 60 + 40 + 10
Unitary production variable cost= $110
<u>Now, the income statement:</u>
Sales= 300*8,400= 2,520,000
Total variable cost= 8,400*(110 + 30)= (1,176,000)
Total contribution margin= 1,344,000
Fixed manufacturing overhead= (180,000)
Fixed selling and administrative= (780,000)
Net operating income= $384,000
<u>Finally, the break-even point in units:</u>
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Break-even point in units= fixed costs/ contribution margin per unit
Break-even point in units= 960,000 / (300 - 140)
Break-even point in units= 6,000