Lehighton Chalk Company manufactures sidewalk chalk, which it sells online by the box at $22 per unit. Lehighton uses an actual costing system, which means that the actual costs of direct material, direct labor, and manufacturing overhead are entered into work-in-process inventory. The actual application rate for manufacturing overhead is computed each year; actual manufacturing overhead is divided by actual production (in units) to compute the application rate. Information for Lehightons first two years of operation is as follows:

	Year 1			Year 2
Sales (in units)		2,400			2,400
Production (in units)		3,000			1,800
Production costs:
Variable manufacturing costs	$	11,100		$	6,660
Fixed manufacturing overhead		14,100			14,100
Selling and administrative costs:
Variable		9,600			9,600
Fixed		8,600			8,600

Selected information from Lehightons year-end balance sheets for its first two years of operation is as follows:

LEHIGHTON CHALK COMPANY
Selected Balance Sheet Information
Based on absorption costing	End of Year 1			End of Year 2
Finished-goods inventory	$	5,040		$	0
Retained earnings		8,940			15,040
Based on variable costing	End of Year 1			End of Year 2
Finished-goods inventory	$	2,220		$	0
Retained earnings		6,120			15,040

Required:

1. Reconcile Lehightons operating income reported under absorption and variable costing, during each year, by comparing the following two amounts on each income statement:

Cost of goods sold

Fixed cost (expensed as a period expense)

2. What was Lehightons total operating income across both years under absorption costing and under variable costing?

3. What was the total sales revenue across both years under absorption costing and under variable costing?

4. What was the total of all costs expensed on the operating income statements across both years under absorption costing and under variable costing?

5. Subtract the total costs expensed across both years [requirement (4)] from the total sales revenue across both years [requirement (3)]: (a) under absorption costing and (b) under variable costing.

6. Considering the results obtained in requirements 1-5 above, select which of the following statements (is) are true by selecting an "X"

Sales revenue is different depending on the costing method used
Timing is the key in distinguishing between absorption and variable costing
Since Lehighton's combined operating income across the two-year period, is the same under both absorption and variable costing, then the operationg income must be the same within each year under both methods
The difference between absorption and variable costing is caused by the timeing with which expemses are recongnized.

please work out so i can get a better understanding.