Nova Company's total overhead cost at various levels of activity are presented below: Total Overhead Cost $ 210,600 $184,200 $ 237,000 $ 263,400 Month April May June July Machine-Hours 50,000 40,000 60,000 70,000 Assume the total overhead cost above consists of utilities, supervisory salaries, and maintenance. The breakdown of these costs at the 40,000 machine-hour level of activity is: Utilities (variable) Supervisory salaries (fixed) Maintenance (mixed) Total overhead cost $ 56,000 60,000 68,200 $184,200 Nova Company's management wants to break down the maintenance cost into its variable and fixed cost elements. Required: 1. Estimate how much of the $263,400 of overhead cost in July was maintenance cost. (Hint: To do this, it may be helpful to first determine how much of the $263,400 consisted of utilities and supervisory salaries. Think about the behavior of variable and fixed costs.) 2. Using the high-low method, estimate a cost formula for maintenance in the form Y = a + bX. 3. Express the company's total overhead cost in the form Y = a +bx. 4. What total overhead cost would you expect at an activity level of 45,000 machine-hours?

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Nova Company's total overhead cost at various levels of activity are presented below:
Total
Overhead Cost
$ 210,600
$ 184,200
$ 237,000
$ 263,400
Month
April
May
June
July
Machine-Hours
50,000
40,000
60,000
70,000
Assume the total overhead cost above consists of utilities, supervisory salaries, and maintenance. The breakdown of these costs at the
40,000 machine-hour level of activity is:
Utilities (variable)
Supervisory salaries (fixed)
Maintenance (mixed)
Total overhead cost
$ 56,000
60,000
68,200
$ 184,200
Nova Company's management wants to break down the maintenance cost into its variable and fixed cost elements.
Required:
1. Estimate how much of the $263,400 of overhead cost in July was maintenance cost. (Hint: To do this, it may be helpful to first
determine how much of the $263,400 consisted of utilities and supervisory salaries. Think about the behavior of variable and fixed
costs.)
2. Using the high-low method, estimate a cost formula for maintenance in the form Y = a + bx.
3. Express the company's total overhead cost in the form Y = a +bX.
4. What total overhead cost would you expect at an activity level of 45,000 machine-hours?
Transcribed Image Text:Nova Company's total overhead cost at various levels of activity are presented below: Total Overhead Cost $ 210,600 $ 184,200 $ 237,000 $ 263,400 Month April May June July Machine-Hours 50,000 40,000 60,000 70,000 Assume the total overhead cost above consists of utilities, supervisory salaries, and maintenance. The breakdown of these costs at the 40,000 machine-hour level of activity is: Utilities (variable) Supervisory salaries (fixed) Maintenance (mixed) Total overhead cost $ 56,000 60,000 68,200 $ 184,200 Nova Company's management wants to break down the maintenance cost into its variable and fixed cost elements. Required: 1. Estimate how much of the $263,400 of overhead cost in July was maintenance cost. (Hint: To do this, it may be helpful to first determine how much of the $263,400 consisted of utilities and supervisory salaries. Think about the behavior of variable and fixed costs.) 2. Using the high-low method, estimate a cost formula for maintenance in the form Y = a + bx. 3. Express the company's total overhead cost in the form Y = a +bX. 4. What total overhead cost would you expect at an activity level of 45,000 machine-hours?
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