The operating revenues of the three largest business segments for Time Warner, Inc., for a recent year follow. Each segment includes a number of businesses, examples of which are indicated in parentheses. Time Warner, Inc. Segment Revenues (in millions) Turner (cable networks and digital media) Home Box Office (pay television) $67,600 74,800 Warner Bros. (films, television, and videos) 24,300 Assume that the variable costs as a percent of sales for each segment are as follows: Turner 51% Home Box Office Warner Bros. 39% 33% a. Determine the contribution margin and contribution margin ratio for each segment from the information given. Round contribution margin ratio to whole percents for each segment from the information given. Enter all amounts as positive numbers. Revenues Variable costs Contribution margin Turner Home Box Office Warner Bros. $ Contribution margin ratio (as a percent) % % %