Problem

Antioch Extraction, which mines ore in Montana, uses a calendar year for both financial-re...

Antioch Extraction, which mines ore in Montana, uses a calendar year for both financial-reporting and tax purposes. The following selected costs were incurred in December, the low point of activity, when 1,500 tons of ore were extracted:

Straight-line depreciation

$ 25,000

Charitable contributions*

11,000

Mining labor/fringe benefits

345,000

Royalties

$135,000

Trucking and hauling

275,000

*Incurred only in December

Peak activity of 2,600tons occurred in June, resulting in mining labor/fringe benefit costs of $598.000, royalties of $201.000, and trucking and hauling outlays of $325,000. The trucking and hauling outlays exhibit the following behavior:

Less than 1,500 tons

$250,000

From 1,500–1,899 tons

275,000

From 1,900–2,299 tons

300,000

From 2,300–2,699 tons

325,000

Antioch uses the high-low method to analyze costs.

Required:

1. Classify the five costs listed in terms of their behavior: variable, step-variable, committed fixed, discretionary fixed, step-fixed, or semivariable. Show calculations to support your answers for mining labor/fringe benefits and royalties.

2. Calculate the total cost for next February when 1.650 tons are expected to be extracted.

3. Comment on the cost-effectiveness of hauling 1,500 tons with respect to Antioch’s trucking/hauling cost behavior. Can the company’s effectiveness be improved? How?

4. Distinguish between committed and discretionary fixed costs. If Antioch were to experience severe economic difficulties, which of the two types of fixed costs should management try to cut? Why?

5. Speculate as to why the company’s charitable contribution cost arises only in December.

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