Question

I ONLY NEED 6 AND 7

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 24 tubes for $11 per box. Because of excess capacity, no additional fixed manufacturing overhead costs will be incurred to produce the product. However, a $136,000 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 170,000 boxes of Chap-Off, the Accounting Department has developed the following manufacturing cost per box:

Direct material	$	4.90
Direct labor		3.20
Manufacturing overhead		2.20
Total cost	$	10.30

The costs above relate to making both the lip balm and the tube that contains it. As an alternative to making the tubes for Chap-Off, Silven has approached a supplier to discuss the possibility of buying the tubes. The purchase price of the supplier's empty tubes would be $1.65 per box of 24 tubes. If Silven Industries stops making the tubes and buys them from the outside supplier, its direct labor and variable manufacturing overhead costs per box of Chap-Off would be reduced by 10% and its direct materials costs would be reduced by 20%.

Required:

1. If Silven buys its tubes from the outside supplier, how much of its own Chap-Off manufacturing costs per box will it be able to avoid? (Hint: You need to separate the manufacturing overhead of $2.20 per box that is shown above into its variable and fixed components to derive the correct answer.)

2. What is the financial advantage (disadvantage) per box of Chap-Off if Silven buys its tubes from the outside supplier?

3. What is the financial advantage (disadvantage) in total (not per box) if Silven buys 170,000 boxes of tubes from the outside supplier?

4. Should Silven Industries make or buy the tubes?

5. What is the maximum price that Silven should be willing to pay the outside supplier for a box of 24 tubes?

6. Instead of sales of 170,000 boxes of tubes, revised estimates show a sales volume of 209,000 boxes of tubes. At this higher sales volume, Silven would need to rent extra equipment at a cost of $59,000 per year to make the additional 39,000 boxes of tubes. Assuming that the outside supplier will not accept an order for less than 209,000 boxes of tubes, what is the financial advantage (disadvantage) in total (not per box) if Silven buys 209,000 boxes of tubes from the outside supplier? Given this new information, should Silven Industries make or buy the tubes?

7. Refer to the data in (6) above. Assume that the outside supplier will accept an order of any size for the tubes at a price of $1.65 per box. How many boxes of tubes should Silven make? How many boxes of tubes should it buy from the outside supplier?

Answer 1

Total Manufacturing overheads = 170000 boxes * 2.20 = 374000
Fixed mfr overhead = 136000
Variable mfr overhead = 374000-136000 = 238000
Varible cost per unit of mfr overhead = 238000/170000 = 1.4 per box.

Calculation of Contribution per unit when silven makes its tubes:
=11-4.9-3.2-1.4= 1.5 per box.
Calculation of contribution per unit if purchased from outside:
Selling Price       11
Direct Material       3.92 (4.9 - 20%)
Direct Labour         2.88 (3.2 - 10%)
Mfr overhead          1.26   (1.4 - 10%)
Purchase cost        1.65
Contribution per box   1.29 per box

6). At 209000 boxes, profit is : if Company make tubes:
Contibution = 209000*1.5 = 313500
Net profit = 313500-59000-136000= 118500
IF company buys tubes:
Contibution = 209000*1.29= 269610
Net profit= 269610-136000= 133610
There is financial advantage if company buys tubes which amounts to $133610-11850 = $15110.
Hence company should buy the tubes.

7). If the supplier of tubes able to accept order of any size then it is beneficial to buys additional 39000 units of boxes @$1.65 and should continue to make 125000 boxes because of additional units of 39000 there is outflow of $59000 which exceed the savings of 39000 boxes if made in house.