1. Using the data from the Koko Company, determine the divisional income from operations for the A and B regions.
|   | A   Region | B   Region |   | 
| Sales | $600,000 | $900,000 |   | 
| Cost of goods sold |     200,000 |     350,000 |   | 
| Selling expenses |     150,000 |     275,000 |   | 
|   |   |   |   | 
| Service department expenses |   |   |   | 
|           Purchasing |   |   | $80,000 | 
|           Payroll accounting |   |   |     40,000 | 
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 Allocate service department expenses proportional to the sales of each region.
2.The sales, income from operations, and invested assets for each division of Winston Company are as follows:
|   | Sales
 | Income   fromOperations
 | InvestedAssets
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| Division C | $5,000,000 | $630,000 | $3,900,000 | 
| Division D | 6,800,000 | 760,000 | 4,300,000 | 
| Division E | 3,750,000 | 750,000 | 7,250,000 | 
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 Management has established a minimum rate of return for invested assets of 8%.
| (a) | Determine the residual income for   each division. | 
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| (b) | Based on residual income, which of   the divisions is the most profitable? | 
 
3. Pnok Company has been purchasing a component, Part Q, for $18.90 a unit. Pnok is currently operating at 70% of capacity and no significant increase in production is anticipated in the near future. The cost of manufacturing a unit of Part Q, determined by absorption costing methods, is estimated as follows:
| Direct materials | $11.25 | 
| Direct labor | 4.50 | 
| Variable factory overhead | 1.12 | 
| Fixed factory overhead |       3.15 | 
| Total | $20.02 | 
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 Prepare a differential analysis report, dated March 12 of the current year, on the decision to make or buy Part Q.
 
4. FDE Manufacturing Company has a normal plant capacity of 37,500 units per month. Because of an extra-large quantity of inventory on hand, it expects to produce only 30,000 units in May. Monthly fixed costs and expenses are $112,500 ($3 per unit at normal plant capacity) and variable costs and expenses are $8.25 per unit. The present selling price is $13.50 per unit. The company has an opportunity to sell 7,500 additional units at $9.90 per unit to an exporter who plans to market the product under its own brand name in a foreign market. The additional business is therefore not expected to affect the regular selling price or quantity of sales of FDE Manufacturing Company.
 
 Prepare a differential analysis report, dated April 21 of the current year, on the proposal to sell at the special price.