Key comparative figures for Samsung. Apple, and Google follow. Required: 1. Compute the gross margin ratio for each of the three companies. (W millions of Korean) 2-a. Is Samsung's gross margin fatio better or worse than that for Apple? 2.b. is Samsung's gross margin ratio better or worse than that for Google? 3-a. Is the single-step or multiple-step income statement format used in the case of Apple? 3.b. Is the single.step or multiple-step income statement format used in the case of Googie? 3 -c. Is the single-step or multiple-step income statement format used in the case of Samsung? Complete this question by entering your answers in the tabs below. Compute the gross margin ratio for each of the three companies. (W millions of Korean) Note: Round your percentage answers to 1 decimal place. Enter your answers in millions of dollars or Korean won