Question

Silven Industries, which manufactures and sells a highly successful line of summer lotions and insect repellents, has decided to diversify in order to stabilize sales throughout the year. A natural area for the company to consider is the production of winter lotions and creams to prevent dry and chapped skin.

After considerable research, a winter products line has been developed. However, Silven’s president has decided to introduce only one of the new products for this coming winter. If the product is a success, further expansion in future years will be initiated.

The product selected (called Chap-Off) is a lip balm that will be sold in a lipstick-type tube. The product will be sold to wholesalers in boxes of 16 tubes for $6.90 per box. Because of excess capacity, no additional fixed manufacturing overhead costs will be incurred to produce the product. However, a $100,000 charge for fixed manufacturing overhead will be absorbed by the product under the company’s absorption costing system.

Using the estimated sales and production of 100,000 boxes of Chap-Off, the Accounting Department has developed the following cost per box:

Direct materials	$	2.60
Direct labor		1.00
Manufacturing overhead		1.80
Total cost	$	5.40

The costs above include costs for producing both the lip balm and the tube that contains it. As an alternative to making the tubes, Silven has approached a supplier to discuss the possibility of purchasing the tubes for Chap-Off. The purchase price of the empty tubes from the supplier would be $0.80 per box of 16 tubes. If Silven Industries accepts the purchase proposal, direct labor and variable manufacturing overhead costs per box of Chap-Off would be reduced by 10% and direct materials costs would be reduced by 20%.

  

Required:
1a.	Calculate the total variable cost of producing one box of Chap-Off. (Do not round intermediate calculations. Round your answer to 2 decimal places.)
	Total Variable Cost _________________Per box

  

1b.	Assume that the tubes for the Chap-Off are purchased from the outside supplier, calculate the total variable cost of producing one box of Chap-Off. (Do not round intermediate calculations. Round your answer to 2 decimal places.)
	total variable cost___________________per box

  

1c.	Should Silven Industries make or buy the tubes?
	Make    Buy

   

2.	What would be the maximum purchase price acceptable to Silven Industries? (Do not round intermediate calculations. Round your answer to 2 decimal places.)
	maximum purchase price_______________per box of tubes

     

3.	Instead of sales of 100,000 boxes, revised estimates show a sales volume of 115,000 boxes. At this new volume, additional equipment must be acquired to manufacture the tubes at an annual rental of $22,000. Assume that the outside supplier will not accept an order for less than 115,000 boxes.

a.	Calculate the total relevant cost of making 115,000 boxes and total relevant cost of buying 115,000 boxes. (Do not round intermediate calculations.)
	making buying
	total cost _______ }____________

  

b.	Based on the above calculations, should Silven Industries make or buy the boxes?
	Make Buy

  

4.	Refer to the data in (3) above. Assume that the outside supplier will accept an order of any size for the tubes at $0.80 per box. Which of these is the best alternative?
	Make all 115,000 boxes Buy all 115,000 boxes Make 100,000 boxes and buy 15,000 boxes Make 22,000 boxes and buy 22,000 boxes

Answer 1

Solution 1a:

Total manufacturing overhead per unit at 100000 boxes = $1.80 per unit

Fixed manufacturing overhead per unit = $100,000 / 100000 = $1 per unit

Variable manufacturing overhead per unit = $1.80 - $1 = $0.80 per unit

total variable cost of producing one box of Chap-Off = $2.60 + $1 + $0.80 = $4.40

Solution 1b:

Reduction in Chap-Off manufacturing costs per box, if tubes purchased from outside vendor = (Direct labor cost per unit + Variable manufacturing overhead per unit) * 10% + Direct material cost per unit * 20%

= ($1 + $0.80)*10% + ($2.60*20%) = $0.70 per unit

Total variable cost of producing one box of Chap-Off, if purchased from outside supplier = $4.40 - $0.70 + $0.80 = $4.50 per box

Solution 1c:

As buying cost is higher than making cost, therefore silven industries should make the tubes.

Solution 2:

Maximum price that silven willing to pay outside supplier = Variable cost to make = $0.70 per box

Solution 3a:

Cost to make 115000 boxes = (115000*$4.40) + $22,000 = $528,000

Cost to buy 115000 boxes = 115000*$4.50 = $517,500

Financial advantage (Disadvantage) of buying = $528,000 - $517,500 = $10,500

Solution 3b:

As there is financial advantage, therefore silven should buy the boxes.

Solution 4:

If outside supplier can accept any quantity of order, then silven should make 100000 boxes and buy 15000 boxes from outside supplier.

Hence 3rd option is correct.