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VARIABLE COSTS DIRECT MATERIAL 960 DIRECT LABOR 600 VARIABLE OVERHEAD 300 TOTAL

ID: 2622291 • Letter: V

Question

VARIABLE COSTS

DIRECT MATERIAL                     960

DIRECT LABOR                          600

VARIABLE OVERHEAD               300

TOTAL VARIABLE COSTS         1800


FIXED COSTS

DEPRECIATION OF BUILDING         200

DEPRECIATION OF EQUIPMENT 500

SUPERVISORY SALARIES               300

TOTAL FIXED COSTS                    1000

TOTAL COST                                2800


OFFER FROM COMPANY TO PRODUCE THE PART FOR $2000 PER UNIT AND SUPPLY 1000 VALVES. IF THE COMPANY ACCEPTS THIS OFFER AND SHUTS DOWN PRODUCTION OF VALVES, PRODUCTION WORKERS AND SUPERVISORS WILL BE REASSIGNED TO OTHER AREAS. THE EQUIPMENT CANNOT BE USED ELSWHERE IN THE COMPANY AND HAS NO MARKET VALUE. HOWEVER THE SPACE OCCUPIED BY PRODUCTION OF THE VALVE CAN BE USED BY ANOTHER PRODUCTION GROUP THAT IS CURRENTLY LEASING SPACE FOR $55000 PER YEAR. WHAT IS THE INCREMENTAL SAVINGS OF BUYING THE VALVES?

Explanation / Answer

Costs that can be avoided as a result of purchasing from the outside are played important role in make-or-buy decision.

Per unit costs

1000 units

Make

Buy

Make

Buy

Cost of purchasing

$2,000

$2,000,000

Cost of making:

DIRECT MATERIAL

$900

$900,000

DIRECT LABOR

600

600,000

VARIABLE OVERHEAD

300

300,000

SUPERVISORY SALARIES              

300

300,000

TOTAL COST                               

$2,100

$2,100,000

$2,000,000

The $55,000 per year rental value represents an opportunity cost of continuing to produce the part internally. Thus, the analysis would be:

Make

Buy

TOTAL COST                               

$2,100,000

$2,000,000

Rental value of the space (opportunity cost)

$55,000

TOTAL COST including opportunity cost                          

$2,155,000

$2,000,000

Conclusion:

From the above calculation, we can see that the incremental savings of buying the valves is $155,000.

Per unit costs

1000 units

Make

Buy

Make

Buy

Cost of purchasing

$2,000

$2,000,000

Cost of making:

DIRECT MATERIAL

$900

$900,000

DIRECT LABOR

600

600,000

VARIABLE OVERHEAD

300

300,000

SUPERVISORY SALARIES              

300

300,000

TOTAL COST                               

$2,100

$2,100,000

$2,000,000