Grosbeck Cattle Company has gathered the following information about operations for the past three years. Mathew Grosbeck has been expanding herd size and is frustrated that profits have not shown consistent growth.

Year 1Year 2 Year 3 Cow herd size 120 140 180

Revenues from sale of calves $102,000$119,000 $153,000

Feed 18,000 21,000 27,000

Labor (1 cowboy per 120 cows)24,000 48,00048,000

Cow depreciation 15,000 17,50022,500

Bull depreciation (1 bull per 30 cows) 1,6672,0832,500

Medications/vaccinations 3,000 3,500 4,500

Land lease 10,00010,00010,000

Operating income 30,333 16,917 38,500

(a) Determine which costs are variable, fixed, and "step" fixed. Complete the "per unit" cost table on the preprinted worksheet.

(b) How much is the per-cow contribution margin?

(c) How do the "step" costs explain the struggle to achieve consistent growth in profits? What strategy should Mathew undertake to maximize profit potential for his operation?

(d) Assuming Mathew's land will support a herd of 240 cows, project anticipated profits. Why is the profit more than twice as much as the amount that is earned on a herd size of 120 cows?