Arlington Clothing, Inc., shows the following information for its two divisions for year 1. Sales revenue Cost of sales Allocated corporate overhead Other general and administration Lake Region $4,120,000 2,671,300 247,200 549,900 Coastal Region $13,030,000 6,515,000 781,800 3,751,000 Required: a. Compute divisional operating income for the two divisions. Ignore taxes. b-1. What are the gross margin and operating margin percentages for both divisions? b-2. How well have these divisions performed? Complete this question by entering your answers in the tabs below. Reg A Reg B1 Reg B2 Compute divisional operating income for the two divisions. Ignore taxes. (Enter your answers in thousands of dollars rounded to 1 decimal place.) Lake Region Coastal Region Operating income What are the gross margin and operating margin percentages for both divisions? (Enter your answers as a percentage rounded to 2 decimal places (i.e., 32.12).) Lake Region Coastal Region % Gross margin percentage Operating margin %