Cant figure out the percentages. Please help

Exercise 6-7 (Algo) Segmented Income Statement [LO6-4] Shannon Company segments its income statement into its North and South Divisions. The company's overall sales, contribution margin ratio, and net operating income are $660,000,42%, and $13,200, respectively. The North Division's contribution margin and contribution margin ratio are $119,600 and 46%, respectively. The South Division's segment margin is $64.000. The company has $105,600 of common fixed expenses that cannot be traced to either division. Required: Prepare an income statement for Shannon Company that uses the contribution format and is segmented by divisions. In addition, for the company as a whole and for each segment, show each item on the segmented income statements as a percent of sales. (Round your percentage answers to 1 decimal place (Le. 1234 should be entered as 12.3).)