Akuntansi Biaya : P 18-1 Variance Analysis: Materials, Labor, and Factory Overhead

P 18-1	Variance Analysis: Materials, Labor, and Factory Overhead
	Puray Corporation manufactures a product with the following standard costs:
	Direct Materials	20	yards  at	$      1.35	per yards	$ 27.00
	Direct labor	4	hours at	$      9.00	per hour	$ 36.00
	Factory Overhead	4	direct lbr hours at	$      7.50	per hour	$ 30.00
	ratio variable to fixed is	2  :  1
	Total standard cost per unit of output					$ 93.00
	Standards are based on normal monthly capacity of			2,400	direct labor hours
	The following informations pertains to July:
	Units produced in July					500
	Direct materials purchased	18,000	yards at	1.38	per yard	24,840
	Direct materials used	9,500	yards
	Direct labor	2,100	hours at	9.15		19,215
	Actual Factory Overhead					16,650
	Required :
1)	Compute the Variable Factory Overhead rate per direct labor hour and the total fixed factory
	overhead based on normal monthly capacity
2)	Compute the following variances and indicate whether they are favorable or unfavorable:
	a) Material purchase price and quantity variances
	b) Labor rate and efficiency variances
	c) Factory overhead controllable and volume variance
					(AICPA adapted)
	Jawab:
1)	Variable overhead rate  =	2/3    x	7.5	5	per direct labor hours
	Total Fixed FOH    =	2400	2.5	6000	per month
2)	Material purchase price variance:
		(Act P     -        Std P)     x   Material Purchased
		1.38	1.35	18000	540	(Un Fav)
	Material quantity variance:
		(Act Q        -     Std Q)   x         Std P
		9500	10000	1.35	-675	(Fav)
	Labor rate variance:	(Act Rate    -   Std Rate)  x     Act Hours
		9.15	9	2100	315	(Un Fav)
	Labor efficiency variance:	(Act Hours  - Std Hours)  x     Std Rate
		2100	2000	9	900	(Un Fav)
	Factory Overhead Variance (two variance method)
	FOH Actual			16650	Controllable Variance
	Budget FOH based on standard hours				650	(Un Fav)
		Hours    x     FOH Rate
	FOH variable	2000	5	10000
	FOH Fixed	2400	2.5	6000
	Total FOH			16000	Volume Variance
	FOH Applied	2000	7.5	15000	1000	(Un Fav)
			Total FOH variance   =		1650	(Un Fav)