Answer: The total cost of Mel Buying the cookies is $7,500, the total cost of Mel making the cookies is $11,500, the differential cost is $4,000, I will advise Mel to continue buying the cookies
Step-by-step explanation:
Comparative cost statements for two alternatives
Mel Make. Mel Buy
$ $
Direct materials (0.20 × 10,000) 2,000. -
Direct Labour ($0.15 × 10,000) 1,500. 1,500
Variable overhead ($0.15 × 10,000) 1,500. 1,500
Fixed overhead ($0.30 × 10,000) 3,000. -
Cost price. 8,000. 6,000
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Total Cost. 16,000. 9,000
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The fixed overhead apportioned to the cookies will still be incurred whether or not Mel purchase the cookies from outside supplier. Fixed overhead and direct labour are therefore irrelevant in deciding which alternative to choose.if the cookies were purchased from outside supplier. Since it will be different for each alternative, we can compute the cost statement for the two alternative using only relevant cost as follows
Mel Make. Mel Buy
$ $
Direct materials. 2,000. -
Variable overhead. 1,500. 1,500
Cost price. 8,000. 6,000
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Total Cost. 11,500. 7,500
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The Differential cost is (11,500 - 7,500) = 4,000
Based on the cost statement I will advise Mel to continue buying the cookies