Tan Corporation of Japan has two regional divisions with headquarters in Osaka and Yokohama. Selected data on the two divisions follow:

	Division
	Osaka	Yokohama
Sales	$ 10,400,000	$ 34,000,000
Net operating income	$ 520,000	$ 2,380,000
Average operating assets	$ 2,600,000	$ 17,000,000

Required:

1. For each division, compute the return on investment (ROI).

2. Assume that the company evaluates performance using residual income and that the minimum required rate of return for any division is 12%. Compute the residual income for each division.