| Course | AC420 Cost Accounting |
|---|---|
| Unit | Unit 8 |
| Paper type | Seminar reflection |
| Length | About 810 words, 5 pages double-spaced |
| Format | APA 7 student paper |
| School | Purdue University Global |
| Program | BS in Accounting |
| Updated | October 2026 |
Free sample paper for AC420 Unit 8
A Variance With Her Name on It: A Unit 8 Seminar Reflection on Overtime a Supervisor Never Chose
[Student Name]
Purdue University Global
AC420: Cost Accounting
Unit 8 Seminar Reflection
[Instructor Name]
[Date]
Bellhaven Iron Works, its people and every figure are composite; the textbooks and study cited are real.
My View Before the Session
I arrived holding a view I thought was simply correct: a variance belongs to the department where it is recorded. The seasoning line paid the overtime, the overtime appears in its labor account, and the supervisor runs the line. If she could not keep labor cost within standard, the report was right to say so. I also believed that excusing managers from variances teaches them that the budget is optional, and I still think that risk is real.
The facilitator put the figures on the screen:
1. Overtime hours worked in October: 460.
2. Base rate: $25.20 an hour. Overtime premium: $12.60 an hour.
3. Labor rate variance: 460 x $12.60 = $5,796 unfavorable.
4. Labor efficiency variance for the same crew: $1,512 favorable, 60 hours fewer than the standard allowed.
My first reading was that the line had a bad month on cost. Then a classmate pointed at the fourth line. The crew had worked faster than standard while costing more per hour. That combination does not describe a careless supervisor.
How the Session Got to the Sales Call
The discussion moved backward through the month. Why was there overtime? The schedule shows a jump in the third week. Why the jump? A rush order of 14,000 skillets for a home goods chain, due in nine days. Who accepted the order and the date? The regional sales manager, on a call with the buyer, after checking finished goods but not the seasoning schedule. The supervisor learned of the order from the production planner the next morning and had two choices: overtime or a missed delivery. She chose overtime and, as the efficiency figure shows, ran the line well.
The variance measured a decision made on a sales call and paid for on the seasoning line, so the report held the one person who managed the consequence well accountable for a choice she never made.
One classmate tried to rescue my original view. Could the supervisor have avoided the premium by asking for a temporary second shift instead? The planner's notes answered that: the second shift's crew was already committed to the Dutch oven line that week, and hiring temporary seasoning staff takes two weeks of training. Another asked whether she should have refused the date. That would have put a customer relationship, and a decision about it, in the hands of the one person with the least information about the account. By this point I could see that every route back to the supervisor ran through a choice someone else had already made. The question was no longer whether she was responsible, but who was, and how the report could show it.
The Principle and Two Remedies
Under the controllability principle, a manager's results are judged only on what that manager can significantly influence (Merchant & Van der Stede, 2017). It is not absolute; the textbook allows that holding managers responsible for some uncontrollable items can push them to respond to them (Datar & Rajan, 2021). That was my original position, and the class did not dismiss it. But a study of managers' views found that they judge the principle mainly as a question of fairness, and that violations they see as unfair damage motivation (Giraud et al., 2008). The supervisor had already done everything a response could do.
The class proposed two remedies. The first charges the premium to the sales manager who accepted the order, so the person who traded a delivery date for a sale sees its cost. The second records overtime caused by rush orders on a separate expedite line, priced into future rush quotes at about 41 cents a skillet here, $5,796 over 14,000 units. I argued for the first and came around to the second, because it does more than move blame: it makes rush orders carry their own cost, so the next quote includes it before anyone agrees to a date.
What I Think Now, and One Practice to Change
I still believe managers should own variances they can influence, and I would not excuse the supervisor from the efficiency figure, good or bad. What changed is my test. Before I accept that a variance belongs to the department where it is recorded, I now ask where the decision behind it was made. At my own job, a warehouse where rush freight lands in the receiving budget, I intend to propose a code for freight caused by late customer changes, so that its cost reaches the people who approve those changes.
References
Datar, S. M., & Rajan, M. V. (2021). Horngren's cost accounting: A managerial emphasis (17th ed.). Pearson.
Giraud, F., Langevin, P., & Mendoza, C. (2008). Justice as a rationale for the controllability principle: A study of managers' opinions. Management Accounting Research, 19(1), 32-44. https://doi.org/10.1016/j.mar.2007.09.002
Merchant, K. A., & Van der Stede, W. A. (2017). Management control systems: Performance measurement, evaluation and incentives (4th ed.). Pearson.
The Purdue Global AC420 Unit 8 instructions
The eighth AC420 seminar asks you to reflect on a case where a manager was held responsible for a cost they did not control. Write in the first person and state your starting view in its strongest form, so the change that follows is real. Include a short box of the key figures, since the discussion depends on reading them correctly. Follow the session in the order it moved, showing which question or comment shifted your thinking. Explain the controllability principle as the class applied it, including its limits, and support it with research. Compare the remedies proposed and say which you now prefer and why. Close with the view you hold now and one practice you would change at work or in a job you know. Keep calculations brief. Cite the textbook and research on management control in APA 7.
Inside the AC420 Unit 8 example
The sample opens with the writer's starting position that a variance belongs where it is recorded, stated fairly, followed by a four-line box: 460 overtime hours, a $12.60 premium, the $5,796 rate variance and a $1,512 favorable efficiency variance. A classmate's point about the efficiency figure starts the shift. The next section traces the overtime back through the schedule to a sales manager's call, then tests two alternatives the supervisor might have had. The highlighted sentence states that the report held the one person who managed the consequence accountable for a choice she never made. A section on the principle cites Merchant and Van der Stede, Datar and Rajan, and Giraud and colleagues, then compares charging sales with a 41-cent expedite line. A rush freight code at the writer's warehouse closes the reflection.
Reading the AC420 Unit 8 grading rubric
AC420 seminar reflections are graded on visible change in thinking, accurate use of figures and thoughtful application of the controllability principle. A starting view stated honestly, and shown to shift for specific reasons, earns more than a polished conclusion. The figures should be read correctly and used to make the argument, not just displayed. Graders look for an explanation of the principle that includes its limits, since holding managers responsible for some uncontrollable items can be justified. Research should explain the writer's change, not decorate it. Comparing remedies on their effects, rather than on who deserves blame, shows judgment. A closing practice drawn from real work turns the reflection into evidence of learning. Purdue Global expects the first person throughout, with APA 7 references to the management control research.
AC420 Unit 8 help from the desk
Many Unit 8 reflections summarize the case without saying what the writer first believed. Others start from the conclusion, so no change is visible. The favorable efficiency variance is ignored, though it is what clears the supervisor. The controllability principle is presented as absolute, with no acknowledgment of why firms sometimes assign uncontrollable costs. Remedies are reduced to blaming sales. Research is quoted in a separate paragraph and never connected to the case. The closing lesson is general rather than a practice someone could adopt. If your session worked through another situation, for example a purchasing manager charged for a price spike or a nurse manager charged for agency staff, our writers can build the reflection around it.
Get an AC420 Unit 8 example written to your instructions
If your Unit 8 seminar used a particular report or case, send its figures and what the discussion concluded; if you completed the written alternative instead, that prompt is enough. Add the rubric. A reflection built on that material, first person and figures checked, arrives in 24-48h, and the first custom sample is free so there is time to add your own observations. The paper above is an original model document written by our desk, not a submitted student paper and not an official Purdue University Global document.
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AC420 Unit 8 questions, answered
Should the reflection include calculations?
A short box helps, because it shows the writer read the report accurately before questioning it. The session's conclusions depended on two numbers, the unfavorable rate variance and the favorable efficiency variance, and a reflection that omits them can read as opinion. More than a few lines of arithmetic, though, turns a reflection into a variance report, which this assignment is not.
What if the seminar concluded the supervisor was responsible after all?
Then the reflection records that turn instead. Sessions sometimes find that a supervisor controlled more than the report suggests, such as choosing overtime over a second shift that was available. Nothing structural changes: a starting belief, the evidence that pressed on it, where the discussion landed and what the writer would now do differently. Only the direction of the change moves.
Can the example come from my own workplace?
Yes, if it is anonymized. Any organization where a cost lands on one manager's report because of a decision made elsewhere works, such as a warehouse charged for rush freight or a call center charged for overtime another team scheduled. Remove names and exact figures, and describe the situation in enough detail that the controllability question is clear.
Where can I find a free AC420 Unit 8 sample paper?
This page holds a complete AC420 Unit 8 seminar reflection on a supervisor charged for overtime caused by a rush order, with a figures box, the session's path, two remedies, a workplace practice and APA 7 references.
What is the expedite line in AC420 Unit 8?
A separate account for overtime caused by rush orders, so the premium does not land on the seasoning line. Here it works out to about 41 cents a skillet, $5,796 over 14,000 units, priced into future rush quotes.