The following information is from Lauderdale's first year of operations: Revenues Cost of sales Selling, General and Administrative (all fixed) Corporate overhead Region I $ 1,200,000 450,000 420,000 Region II $1,650,000 810,000 630,000 Required: a. Compute divisional operating income for the three regions. Ignore taxes. b. How have these regions performed? Region III $ 2,250,000 1,140,000 850,000 Total Corporation $ 5,100,000 2,400,000 1,900,000 432,000