The contribution format income statement for Westex, Inc., for its most recent period is given below:

	Total		Unit
Sales	$	998,000	$	49.90
Variable expenses		598,800		29.94
Contribution margin		399,200		19.96
Fixed expenses		315,200		15.76
Net operating income		84,000		4.20
Income taxes @ 40%		33,600		1.68
Net income	$	50,400	$	2.52

The company had average operating assets of $496,000 during the period.

Required:
1.	Compute the companys return on investment (ROI) for the period using the ROI formula stated in terms of margin and turnover. (Round your intermediate calculations and final answers to 2 decimal places. Omit the "%" sign in your response.)

ROI

%

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 $14,000 per period by using less costly materials. (Round your intermediate calculations and final answers to 2 decimal places. Omit the "%" sign in your response.)

		Effect
Margin	%	(Click to select)UnchangedDecreaseIncrease
Turnover		(Click to select)DecreaseIncreaseUnchanged
ROI	%	(Click to select)UnchangedIncreaseDecrease

3.	Using Lean Production, the company is able to reduce the average level of inventory by $108,000. (The released funds are used to pay off bank loans.) (Round your intermediate calculations and final answers to 2 decimal places. Omit the "%" sign in your response.)

		Effect
Margin	%	(Click to select)IncreaseUnchangedDecrease
Turnover		(Click to select)UnchangedIncreaseDecrease
ROI	%	(Click to select)DecreaseIncreaseUnchanged

4.	Sales are increased by $199,600; operating assets remain unchanged. (Round your intermediate calculations and final answers to 2 decimal places. Omit the "%" sign in your response.)

		Effect
Margin	%	(Click to select)IncreaseUnchangedDecrease
Turnover		(Click to select)UnchangedIncreaseDecrease
ROI	%	(Click to select)DecreaseIncreaseUnchanged

5.

The company issues bonds and uses the proceeds to purchase $130,000 in machinery and equipment at the beginning of the period. Interest on the bonds is $12,000 per period. Sales remain unchanged. The new, more efficient equipment reduces production costs by $3,000 per period. (Round your intermediate calculations and final answers to 2 decimal places. Omit the "%" sign in your response.)

		Effect
Margin	%	(Click to select)DecreaseUnchangedIncrease
Turnover		(Click to select)DecreaseIncreaseUnchanged
ROI	%	(Click to select)IncreaseDecreaseUnchanged

6.	The company invests $178,000 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. Omit the "%" sign in your response.)

		Effect
Margin	%	(Click to select)UnchangedDecreaseIncrease
Turnover		(Click to select)IncreaseDecreaseUnchanged
ROI	%	(Click to select)UnchangedDecreaseIncrease

7.	Obsolete inventory carried on the books at a cost of $15,000 is scrapped and written off as a loss. (Round your intermediate calculations and final answers to 2 decimal places. Omit the "%" sign in your response.)

		Effect
Margin	%	(Click to select)DecreaseUnchangedIncrease
Turnover		(Click to select)DecreaseUnchangedIncrease
ROI	%	(Click to select)DecreaseUnchangedIncrease