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NSF Lube is a fast-growing chain of oil-change stores. The following data are available for last years services.

• NSF Lube performed 469,200 oil changes last year. It had budgeted 434,400 oil changes, averaging 12 minutes each.
• Standard variable labor and support costs per oil change were as follows.

Direct oil specialist services: 12 minutes at $25 per hour	$	5.00
Variable support staff and overhead: 10.5 minutes at $20 per hour		3.50

• Fixed overhead costs:

Annual budget $1,038,400

• Fixed overhead is applied at the rate of $2.40 per oil change.
• Actual oil change costs:

Direct oil specialist services: 469,200 changes averaging 19 minutes at $28 per hour	$	4,160,240
Variable support staff and overhead: 0.19 labor-hours at $18 per hour 469,200 changes		1,604,664
Fixed overhead		1,380,000

Required:

a. Prepare a cost variance analysis for each variable cost for last year. b. Prepare a fixed overhead cost variance analysis.

• Required A
• Required B

Prepare a cost variance analysis for each variable cost for last year. (Indicate the effect of each variance by selecting "F" for favorable, or "U" for unfavorable. If there is no effect, do not select either option.)

	Price Variance Efficiency Variance Total Variance Oil specialist U U U Variable overhead F U F

Prepare a fixed overhead cost variance analysis. (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect.)

	Price variance U Production volume variance F Fixed overhead cost variance U

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