Consider the following information for McKinley and Son, Inc.

12/31/2014 12/31/2015

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Total assets $55,000,000 $62,000,000

Noninterest-bearing current liabilities 1,100,000 1,320,000

Net income 3,300,000 3,426,000

Interest expense 726,000 770,000

Tax rate 35% 35%

Required

a. Evaluate the company in terms of ROI

b. While income has increased in fiscal 2015, is it clear that the company's performance has improved?