The contribution format income statement for Strickland, Inc., for its most recent period is given below:     
  | 
    Total | 
  Unit    | 
|   Sales | 
$ | 
990,000    | 
$ | 
49.50       | 
|   Variable expenses | 
  | 
594,000    | 
  | 
29.70       | 
|    | 
  | 
  | 
  | 
  | 
|   Contribution margin | 
  | 
396,000    | 
  | 
19.80       | 
|   Fixed expenses | 
  | 
318,000    | 
  | 
15.90       | 
|    | 
  | 
  | 
  | 
  | 
|   Net operating income | 
  | 
78,000    | 
  | 
3.90       | 
|   Income taxes @ 40% | 
  | 
31,200    | 
  | 
1.56       | 
|    | 
  | 
  | 
  | 
  | 
|   Net income | 
$ | 
46,800    | 
$ | 
2.34       | 
|    | 
  | 
  | 
  | 
  | 
  | 
| 
 The company had average operating assets of $503,000 during the period. 
 | 
| Required: | 
| 1. | 
 Compute the company's return on investment (ROI) for the period using the ROI formula stated in terms of margin and turnover. (Round your intermediate calculations and final answer to 2 decimal places.) 
 | 
| 
 For each of the following questions, indicate whether the margin and turnover will increase, decrease, or remain unchanged as a result of the events described, and then compute the new ROI figure. Consider each question separately, starting in each case from the original ROI computed in (1) above. 
 | 
| 2. | 
 The company achieves a cost savings of $6,000 per period by using less costly materials. (Round your intermediate calculations and final answers to 2 decimal places.) 
 | 
  | 
  | 
Effect | 
|   Margin | 
% | 
(Click to select)UnchangedIncreaseDecrease   | 
|   Turnover | 
       | 
(Click to select)UnchangedDecreaseIncrease   | 
|   ROI | 
% | 
(Click to select)UnchangedIncreaseDecrease   | 
  | 
| 3. | 
 Using Lean Production, the company is able to reduce the average level of inventory by $91,000. (The released funds are used to pay off bank loans.) (Round your intermediate calculations and final answers to 2 decimal places.) 
 | 
  | 
  | 
Effect | 
|   Margin | 
% | 
(Click to select)IncreaseUnchangedDecrease   | 
|   Turnover | 
       | 
(Click to select)IncreaseDecreaseUnchanged   | 
|   ROI | 
% | 
(Click to select)UnchangedDecreaseIncrease   | 
  | 
| 4. | 
 Sales are increased by $198,000; operating assets remain unchanged. (Round your intermediate calculations and final answers to 2 decimal places.) 
 | 
  | 
  | 
Effect | 
|   Margin | 
% | 
(Click to select)DecreaseUnchangedIncrease   | 
|   Turnover | 
       | 
(Click to select)IncreaseUnchangedDecrease   | 
|   ROI | 
% | 
(Click to select)UnchangedDecreaseIncrease   | 
  | 
| 5. | 
 The company issues bonds and uses the proceeds to purchase $128,000 in machinery and equipment at the beginning of the period. Interest on the bonds is $14,000 per period. Sales remain unchanged. The new, more efficient equipment reduces production costs by $5,000 per period. (Round your intermediate calculations and final answers to 2 decimal places.) 
 | 
  | 
  | 
Effect | 
|   Margin | 
% | 
(Click to select)IncreaseUnchangedDecrease   | 
|   Turnover | 
       | 
(Click to select)UnchangedDecreaseIncrease   | 
|   ROI | 
% | 
(Click to select)IncreaseDecreaseUnchanged   | 
  | 
| 6. | 
The company invests $182,000 of cash (received on accounts receivable) in a plot of land that is to be held for possible future use as a plant site. (Round your intermediate calculations and final answers to 2 decimal places.) | 
  | 
  | 
Effect | 
|   Margin | 
% | 
(Click to select)IncreaseDecreaseUnchanged   | 
|   Turnover | 
       | 
(Click to select)IncreaseDecreaseUnchanged   | 
|   ROI | 
% | 
(Click to select)UnchangedIncreaseDecrease   | 
  | 
| 7. | 
 Obsolete inventory carried on the books at a cost of $17,000 is scrapped and written off as a loss.(Round your intermediate calculations and final answers to 2 decimal places.) 
 | 
  | 
  | 
Effect | 
|   Margin | 
% | 
(Click to select)DecreaseUnchangedIncrease   | 
|   Turnover | 
       | 
(Click to select)UnchangedDecreaseIncrease   | 
|   ROI | 
% | 
(Click to select)DecreaseUnchangedIncrease   |