Ferris Ltd. of Australia has two divisions, one in Perth and one in Darwin. Selected data on the two divisions follow: Sales Operating income Average operating assets Division Perth Darwin $ 9,000,000 $ 20,000,000 630,000 1,800,000 3,000,000 10,000,000 Required: 1. Compute the ROI for each division. Perth Darwin ROI % % 2. Assume that the company evaluates performance using residual income and that the minimum required rate of return for any division is 16%. Compute the residual income for each division. Perth Darwin Residual income