Wyalusing Industries has manufactured prefabricated houses for over 20 years. The houses are constructed in sections to be assembled on customers lots. Wyalusing expanded into the precut housing market when it acquired Fairmont Company, one of its suppliers. In this market, various types of lumber are precut into the appropriate lengths, banded into packages, and shipped to customers lots for assembly. Wyalusing designated the Fairmont Division as an investment center. Wyalusing uses return on investment (ROI) as a performance measure, with investment defined as average productive assets. Management bonuses are based in part on ROI. All investments are expected to earn a minimum return of 14 percent before income taxes. Fairmonts ROI has ranged from 29.2 to 32.4 percent since it was acquired. Fairmont had an investment opportunity in 20x1 that had an estimated ROI of 28 percent. Fairmonts management decided against the investment because it believed the investment would decrease the divisions overall ROI. The 20x1 income statement for Fairmont Division follows. The divisions productive assets were $18,900,000 at the end of 20x1, a 5 percent increase over the balance at the beginning of the year.

FAIRMONT DIVISION
Income Statement
For the Year Ended December 31, 20x1
(in thousands)
Sales revenue		$ 68,070
Cost of goods sold		41,600
Gross margin		$ 26,470
Operating expenses:
Administrative	$ 5,280
Selling	15,655	20,935
Income from operations before income taxes		$ 5,535

Required:

1-a. Calculate the return on investment (ROI) for 20x1 for the Fairmont Division.

1-b. Calculate residual income for 20x1 for the Fairmont Division.