Care Inc., has two divisions that operate independently of one another. The financial data for the year 2015 reported the following results:

	North	South
Sales	$6,000,000	$5,000,000
Operating income	1 comma 900 comma 0001,900,000	1 comma 700 comma 0001,700,000
Taxable income	1 comma 800 comma 0001,800,000	850 comma 000850,000
Investment	18 comma 000 comma 00018,000,000	11 comma 000 comma 00011,000,000

The company's desired rate of return is 10%. Income is defined as operating income. Which division has the best return on investment and which division has the best residual income figure, respectively?